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Journal articles on the topic 'Photoluminescent supramolecular hydrogels'

Author: Grafiati
Published: 6 September 2023

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1

Gu, Lianghong, Xue Liu, Shumin Dong, Zhijun Chen, Rui Han, Chao He, Dongsheng Wang, and Yonghao Zheng. "Natural lignin nanoparticles: a promising nano-crosslinker for constructing fluorescent photoswitchable supramolecular hydrogels." Polymer Chemistry 11, no. 11 (2020): 1871–76. http://dx.doi.org/10.1039/c9py01845j.

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Photoswitchable and photoluminescent ternary supramolecular hydrogels were fabricated by host–guest and ionic interactions between polyacrylic acid, azobenzene guanidine and α-cyclodextrin grafted cellulolytic enzyme lignin nanoparticles.
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2

Akriche, Samah, Aymen Tliba, and Mohamed Rzaigui. "Crystal Growth and Characterization of the Non-Centrosymmetric Hydrated Co-hexaborate templated by racemic 2-methylpiperazinium (C5H14N2){Co[B6O7(OH)6]2}.2H2O." JOURNAL OF ADVANCES IN CHEMISTRY 10, no. 3 (April 4, 2014): 2377–87. http://dx.doi.org/10.24297/jac.v10i3.2288.

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Large single crystals of the non-centrosymmetric hydrated Co-hexaborate (C5H14N2){Co[B6O7(OH)6]2}.2H2O were grown from aqueous solution and characterized by powder and single-crystal XRD methods, IR, UV-Vis and photoluminescence spectroscopy measurements. Single-crystal XRD analyses show that the reported compound crystallizes in the orthorhombic non-centrosymmetric space group Fdd2 and its crystal structure consists of anionic molecular Co-hexaborate units arranged into 3D-supramolecular honey-comb like structure network with the organic cation and water of crystallization occupying large tunnels voids along [110] through strong hydrogen bond interactions. In addition, Its electronic properties have also been investigated showing a considerable important gap energy well proving the semiconductor behavior and the photoluminescent property of reported material.
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3

Shimosaraya, Noritaka, Taichi Sotani, Yu Miyagi, Evan Angelo Quimada Mondarte, Kasinan Suthiwanich, Tomohiro Hayashi, Yuuya Nagata, Hiromitsu Sogawa, and Fumio Sanda. "Tyrosine-based photoluminescent diketopiperazine supramolecular aggregates." Soft Matter 18, no. 1 (2022): 137–45. http://dx.doi.org/10.1039/d1sm01206a.

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A solution of l-tyrosine diketopiperazine in tetrahydrofuran turned into gel state based on intermolecular hydrogen bonding, resulting in π-orbital overlap of the terminal phenyl groups leading to photoluminescence.
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4

Soussi, Imen, Sameh Aoun, Aurelien Planchat, and Samah Akriche. "Hydrothermal Synthesis, Characterization and Photoluminescent Properties of a New Vanadium Substituted Keggin Assembly Supported by Ni Complex." JOURNAL OF ADVANCES IN CHEMISTRY 10, no. 1 (June 10, 2014): 2182–96. http://dx.doi.org/10.24297/jac.v10i1.5592.

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A new monosubstituted vanadium Keggin-type tungstophosphate derivative, [Ni(phen)3]2[PVW11O40].4H2O (phen = 1,10’-phenanthroline), has been hydrothermally synthesized and characterized by powder and single-crystal XRD methods, scanning electron microscopy (SEM), IR, UV-Vis and photoluminescence spectroscopy measurements. X-ray diffraction analysis reveals that the compound crystallizes in the monoclinic system with space group C2/c with a = 19.659 (2) Å, b = 18.054 (3) Å, c = 25.227 (4) Å and β = 100.63 (2)° and its crystal packing displays alternating [PV1W11O40(H2O)4]n4- ribbons extending along [110] and [10] respectively at z = 0 and z = ½. These ribbons are extended into a 3D supramolecular framework by hydrogen-bonding interactions generating vacant 1D-channels along c-axis leading to anchorage of transition metal complexes. Moreover, the electronic properties and the optical band gaps have also been investigated well confirming the semiconductor behavior and photoluminescent property of reported material.
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5

Sun, Di, Cheng-Feng Yang, Zhan-Hua Wei, Geng-Geng Luo, Na Zhang, Qin-Juan Xu, Rong-Bin Huang, and Lan-Sun Zheng. "Self-assembly of a Novel Three-dimensional Silver(I) Supramolecular Framework from Cationic Chains and Anionic Sheets." Zeitschrift für Naturforschung B 65, no. 2 (February 1, 2010): 152–56. http://dx.doi.org/10.1515/znb-2010-0209.

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A new three-dimensional (3D) supramolecular framework, [Ag2(bipy)2(bdc)·4H2O]n 1, has been synthesized by the ultrasonic reaction of Ag2O, bipy and H2bdc (H2bdc = 1,4-benzenedicarboxylic acid; bipy = 4,4’-bipyridine) at room temperature. It exhibits a new 3D supramolecular framework which is built from cationic Ag-bipy chains and anionic bdc-H2O sheets through hydrogen bonds, π · · ·π stacking and C-H· · ·π interactions. Additionally, the photoluminescent and thermal properties of 1 were investigated.
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6

Wang, Linlin, Jie Zhou, Lei Li, and Shengyu Feng. "Poly(β-hydroxyl amine)s: Valuable Building Blocks for Supramolecular Elastomers with Tunable Mechanical Performance and Superior Healing Capacity." Polymers 14, no. 4 (February 11, 2022): 699. http://dx.doi.org/10.3390/polym14040699.

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Supramolecular elastomers integrated with high mechanical toughness and excellent self-healing ability offer attractive applications in various fields such as biomedical materials and wearable electronics. However, the multistep preparation process for creating functional polymer precursors and the expensive stock materials required are two factors that limit the widespread use of supramolecular elastomers. Herein, for the first time, poly(β-hydroxyl amine)s generated by amine-epoxy polymerization were used in the development of supramolecular polymer materials. Based on the novel silicon-containing poly(β-hydroxyl amine)s synthesized by the polymerization between 1,3-bis(3-glycidyloxypropyl)tetramethyldisiloxane and 3-amino-1,2-propanediol, dually cross-linked supramolecular elastomers with both hydrogen bonding and metal coordination were achieved, displaying adjustable mechanical properties with the tensile strength varying from 0.70 MPa to 2.52 MPa, respectively. Thanks to the dynamic nature of the supramolecular interactions, these elastomers exhibited favorable hot-pressing reprocessability and excellent self-healing performance, with the healing efficiency reaching up to 98% at 60 °C for 48 h. Potential applications for photoluminescent materials and flexible electronic devices were demonstrated. We believe that its simplicity of synthesis, adjustable mechanical properties, and robust self-healing capacities bode well for future applications of this new supramolecular elastomer.
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7

Xu, Yun, Qing-Hua Deng, Fang Ding, Ran An, Dong Liu, and Ti-Fang Miao. "Three New Supramolecular Coordination Polymers Based on 1H-pyrazolo[3,4-b]pyridin-3-amine and 1,3-benzenedicarboxylate Derivatives." Polymers 11, no. 5 (May 7, 2019): 819. http://dx.doi.org/10.3390/polym11050819.

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Three new supramolecular coordination polymers, namely [Zn(1,3-BDC)(HL)]n (Polymer 1), [Zn3(1,3,5-BTC)2(HL)2(H2O)2]n (Polymer 2), and [Zn9(5-SO3-1,3-BDC)2(L)8(OH)4]n (Polymer 3), were synthesized under solvothermal conditions, based on 1H-pyrazolo[3,4-b]pyridin-3-amine (HL) along with 1,3-benzenedicarboxylate (1,3-BDC) and its derivatives, such as 1,3,5-benzenetricarboxylate (1,3,5-BTC) and 5-sulfo-1,3-benzenedicarboxylate (5-SO3-1,3-BDC). Polymers 1–3 were characterized by elemental analysis, IR spectroscopy, powder X-ray diffraction (PXRD), and single crystal X-ray diffraction analysis. Polymer 1 exhibited a two-dimensional (2D) 4-connected sql net. The neighboring 2D nets were further linked into a 3D supramolecular network by hydrogen-bonding interactions. Polymer 2 displayed a 3D (4, 4, 4)-connected network, which was further stabilized by R 2 2 (14) and S(9) hydrogen-bonding rings along with π–π interactions. The 2D sheet structure of Polymer 3 was constructed by novel quasi-linear nonanuclear Zn(II) units, which further extended into a 3D supramolecular structure by hydrogen-bonding interactions. The solid-state photoluminescence properties of Polymers 1–3 were also investigated.
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8

Ghosh, Dipankar, Oddný Ragnarsdóttir, Daníel Arnar Tómasson, and Krishna K. Damodaran. "Solid-State Structural Transformation and Photoluminescence Properties of Supramolecular Coordination Compounds." Symmetry 13, no. 1 (January 11, 2021): 112. http://dx.doi.org/10.3390/sym13010112.

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The combination of strong coordination bonds and hydrogen bonding interactions were used to generate a series of supramolecular coordination materials (SCMs), which was achieved by reacting a bis-pyridyl amide ligand, namely N-(4-pyridyl)nicotinamide (4PNA) with copper(II), zinc(II), and cadmium(II) benzoates. The SCMs were structurally characterized using X-ray diffraction and the key intermolecular interactions were identified via Hirshfeld surface analysis. The role of solvent molecules on the supramolecular architecture was analyzed by synthesizing the SCMs in different solvents/solvent mixtures. A solvent-mediated solid-state structural transformation was observed in copper(II) SCMs and we were able to isolate the intermediate form of the crystal-to-crystal transformation process. The luminescence experiments revealed that complexation enhanced the fluorescence properties of 4PNA in the zinc(II) and cadmium(II) SCMs, but a reverse phenomenon was observed in the copper(II) SCMs. This work demonstrated the tuning of supramolecular assembly in coordination compounds as a function of solvents for generating SCMs with diverse properties.
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9

Ghosh, Dipankar, Oddný Ragnarsdóttir, Daníel Arnar Tómasson, and Krishna K. Damodaran. "Solid-State Structural Transformation and Photoluminescence Properties of Supramolecular Coordination Compounds." Symmetry 13, no. 1 (January 11, 2021): 112. http://dx.doi.org/10.3390/sym13010112.

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The combination of strong coordination bonds and hydrogen bonding interactions were used to generate a series of supramolecular coordination materials (SCMs), which was achieved by reacting a bis-pyridyl amide ligand, namely N-(4-pyridyl)nicotinamide (4PNA) with copper(II), zinc(II), and cadmium(II) benzoates. The SCMs were structurally characterized using X-ray diffraction and the key intermolecular interactions were identified via Hirshfeld surface analysis. The role of solvent molecules on the supramolecular architecture was analyzed by synthesizing the SCMs in different solvents/solvent mixtures. A solvent-mediated solid-state structural transformation was observed in copper(II) SCMs and we were able to isolate the intermediate form of the crystal-to-crystal transformation process. The luminescence experiments revealed that complexation enhanced the fluorescence properties of 4PNA in the zinc(II) and cadmium(II) SCMs, but a reverse phenomenon was observed in the copper(II) SCMs. This work demonstrated the tuning of supramolecular assembly in coordination compounds as a function of solvents for generating SCMs with diverse properties.
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10

Mei, Chong-Zhen, Kai-Hui Li, and Hai-Hua Li. "Assembly of a Flexible 2,2ʹ-Oxydibenzoate and Silver(I) Ions to a Novel 3D Supramolecular Framework: Syntheses, Structure and Properties." Zeitschrift für Naturforschung B 67, no. 11 (November 1, 2012): 1191–96. http://dx.doi.org/10.5560/znb.2012-0212.

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Self-assembly of silver(I) cations, flexible 2,2ʹ-oxydibenzoate anions (L2-), and 1,2-bis(4- pyridyl)ethane (bpa) ligands affords a new three-dimensional supramolecular architecture, {[Ag2(L)(bpa)2]⋅(H2O)4}n (1), which has been characterized by elemental analysis, IR, TGA, PXRD, and single-crystal X-ray diffraction. Complex 1exhibits layers further connected through hydrogen bonding and π...π stacking interactions. Its photoluminescence was also investigated.
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11

Setifi, Zouaoui, Daniel Zambon, Fatima Setifi, Malika El-Ghozzi, Rachid Mahiou, and Christopher Glidewell. "Three zinc(II) and cadmium(II) complexes containing 4-amino-3,5-bis(pyridin-2-yl)-1,2,4-triazole and polynitrile ligands: synthesis, molecular and supramolecular structures, and photoluminescence properties." Acta Crystallographica Section C Structural Chemistry 73, no. 9 (August 7, 2017): 674–81. http://dx.doi.org/10.1107/s2053229617011391.

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Three photoluminescent complexes containing either ZnII or CdII have been synthesized and their structures determined. Bis[4-amino-3,5-bis(pyridin-2-yl)-1,2,4-triazole-κ2 N 1,N 5]bis(dicyanamido-κN 1)zinc(II), [Zn(C12H10N6)2(C2N3)2], (I), bis[4-amino-3,5-bis(pyridin-2-yl)-1,2,4-triazole-κ2 N 1,N 5]bis(dicyanamido-κN 1)cadmium(II), [Cd(C12H10N6)2(C2N3)2], (II), and bis[4-amino-3,5-bis(pyridin-2-yl)-1,2,4-triazole-κ2 N 1,N 5]bis(tricyanomethanido-κN 1)cadmium(II), [Cd(C12H10N6)2(C4N3)2], (III), all crystallize in the space group P\overline{1}, with the metal centres lying on centres of inversion, but neither analogues (I) and (II) nor CdII complexes (II) and (III) are isomorphous. A combination of N—H...N and C—H...N hydrogen bonds and π–π stacking interactions generates three-dimensional framework structures in (I) and (II), and a sheet structure in (III). The photoluminescence spectra of (I)–(III) indicate that the energies of the π–π* transitions in the coordinated triazole ligand are modified by minor changes of the ligand geometry associated with coordination to the metal centres.
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12

Xu, Ya-Ping, Wen-Tong Chen, Cai Yi, Jian-Gen Huang, Ding-Wa Zhang, and Yin-Feng Wang. "A Novel Manganese Complex with Mixed Ligands: Preparation, Structure, Photoluminescent and Semiconductive Properties." Journal of Chemical Research 42, no. 3 (March 2018): 148–52. http://dx.doi.org/10.3184/174751918x15212927064594.

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A manganese complex with mixed ligands, [Mn(2,2′-biim)2(4,4′-bipy)] n[Mn(2,2′-biim)3]2 n6 n(ClO4)•8 nH2O (2,2′-biim = 2,2′-biimidazole; 4,4′-bipy = 4,4′-bipyridine), has been obtained by a hydrothermal procedure and its structure determined by single-crystal X-ray crystallography. A two-dimensional (2-D) supramolecular layer is established through hydrogen-bonding interactions. Solid-state photoluminescence measurement reveals that this complex shows a blue light emission. Solid-state diffuse reflectance determination uncovers the presence of a narrow optical band gap of 2.18 eV in this complex.
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13

Guo, Wei, Li-Qiang Han, and Ya-Mei Guo. "Transition-Metal Supramolecular Complexes with 2-Phenylacetate and a Bent Dipyridyl Ligand: In Situ Hydrothermal Syntheses, Crystal Structures, and Photoluminescent Properties." Australian Journal of Chemistry 66, no. 5 (2013): 539. http://dx.doi.org/10.1071/ch12483.

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This work presents seven CoII, CdII, ZnII, MnII, and NiII supramolecular complexes synthesised by hydrothermal reactions from a bent dipyridyl ligand 2,5-bis(4-pyridyl)-1,3,4-oxadiazole (4-bpo) and 2-phenylmalonic acid (2-phmalH2). Interestingly, the in situ generation of 2-phenylacetic acid (Hpa) by decarboxylation of the 2-phenylmalonic acid precursor is observed in all the complexes. Single-crystal X-ray diffraction reveals that these complexes display a variety of 1D (for 2–7) and monomeric (for 1) coordination motifs, which are further extended into polymeric supramolecular architectures by multiple secondary interactions, such as hydrogen bonding and aromatic stacking. The results evidently demonstrate that the structures of 1–7 are significantly affected by the metal centres and the counter anions of inorganic salts. The photoluminescence properties of complexes 1–7 have also been investigated and discussed.
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14

Wang, Ying, Changfu Zhuang, Chunhua Wu, Jiayan Zhang, Wang Li, Minghong Xin, Guangshan Zhu, and Jianing Xu. "The synthesis, structure and photoluminescence property of a novel 3D supramolecular compound based on mixed ligands of 8-hydroxy-quionline-5-sulfonate and ethylenediamine." Journal of the Serbian Chemical Society 76, no. 11 (2011): 1497–504. http://dx.doi.org/10.2298/jsc110129127w.

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A new organic-inorganic hybrid coordination compound ZnQS (en)?2H2O (1) in which two different organic ligands, ethylenediamine (en) and 8-hydroxy-quinoline-5-sulfonic acid (H2QS) coordinate with zinc ions, has been synthesized via the evaporation method and characterized by single crystal X-ray diffraction analysis, IR spectroscopy and thermogravimetric analysis (TGA). The structure solution showed that compound 1 displays a three-dimensional supramolecular network by synergic linkage of hydrogen and coordinated bonds. Moreover, compound 1 exhibits intense photoluminescence at 513 nm excited at 396 nm in the solid state at room temperature.
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Li, Qi-Yao, Shang-Quan Zang, Jia-Bin Li, and Hong-Wei Hou. "Hydrothermal Synthesis, Crystal Structure and Properties of a 1DMetal- Organic Coordination Polymer {[Zn2(2,2´,3,3´-odpa)(py)3(H2O)]·H2O}n." Zeitschrift für Naturforschung B 65, no. 6 (June 1, 2010): 674–78. http://dx.doi.org/10.1515/znb-2010-0602.

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Hydrothermal reaction of Zn(NO3)2·6H2O with 2,2´,3,3´-oxydiphthalic acid (H4odpa) and pyridine (py) at 120 °C yielded a one-dimensional metal-organic coordination polymer {[Zn2(2,2´,3,3´- odpa)(py)3(H2O)]·H2O}n (1), which is further connected together through hydrogen bonds, π· · ·π and C−H· · ·π interactions to give a three-dimensional supramolecular network. The thermal stability of complex 1 was studied by thermal gravimetric (TG) and differential thermal analyses (DTA). Compound 1 exhibits photoluminescence with an emission maximum at ca. 430 nm upon excitation at 350 nm.
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Mei, Chong-Zhen, Ning Ma, and Kai-Hui Li. "Hydrothermal Synthesis, Crystal Structure and Properties of a 2D Network of Cd(II) Coordination Polymers with Helical Chains." Zeitschrift für Naturforschung B 65, no. 9 (September 1, 2010): 1169–72. http://dx.doi.org/10.1515/znb-2010-0919.

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Hydrothermal reaction of Cd(II) acetate with the bridging ligand m-H4bptc (m-H4bptc = biphenyl-2,3`,3,4`-tetracarboxylic acid) yielded a new 2D metal-organic coordination polymer with helical chains in the solid state namely {[Cd2(m-bptc)(H2O)6]·(H2O)5}n (1). The helices are further connected through hydrogen bonds to give a threedimensional supramolecular network. The thermal stability of complex 1 was studied by thermogravimetric (TG) and differential thermal analysis (DTA). Compound 1 exhibits photoluminescence with an emission maximum at ca. 399 nm upon excitation at 360 nm.
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17

Zhang, Wenkai, Lijuan Shi, Yingqiu Liu, Xianrui Meng, Hao Xu, Yuanqing Xu, Baoying Liu, Xiaomin Fang, Hai-Bei Li, and Tao Ding. "Supramolecular interactions via hydrogen bonding contributing to citric-acid derived carbon dots with high quantum yield and sensitive photoluminescence." RSC Advances 7, no. 33 (2017): 20345–53. http://dx.doi.org/10.1039/c7ra02160g.

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18

Zhang, Ming-Xing, Xin Chen, Kun-Lin Huang, Yi Zhu, and Shan-Shan Yang. "Distinct chiral units from an axially prochiral ligand in a photoluminescent zinc(II)–organic complex." Acta Crystallographica Section C Crystal Structure Communications 68, no. 4 (March 3, 2012): m90—m93. http://dx.doi.org/10.1107/s0108270112006051.

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The asymmetric unit of the title compound, poly[(dimethylamine-κN)[μ3-(E)-2,6-dimethyl-4-styrylpyridine-3,5-dicarboxylato-κ3O3:O3′:O5]zinc(II)], [Zn(C17H13NO4)(C2H7N)]n, consists of one crystallographically independent distorted tetrahedral ZnIIcation, one (E)-2,6-dimethyl-4-styrylpyridine-3,5-dicarboxylate (mspda2−) ligand and one coordinated dimethylamine molecule. TwoS- andR-type chiral units are generated from the axially prochiral mspda2−ligand through C—H...O hydrogen bonds. TheR-type chiral units assemble a left-handed (M) Zn–mspda helical chain, while the right-handed (P) Zn–mspda helical chain is constructed from neighbouringS-type chiral units. TheP- andM-type helical chains are interlinked by carboxylate O atoms to form a one-dimensional ladder. Interchain N—H...O hydrogen bonds extend these one-dimensional ladders into a two-dimensional supramolecular architecture. The title compound exhibits luminescence at λmax= 432 nm upon excitation at 365 nm.
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19

Yi, Xiu-Guang, Wen-Tong Chen, Jian-Gen Huang, Ding-Wa Zhang, and Yin-Feng Wang. "Synthesis, Structure, Photoluminescent and Semiconductor Properties of, and Theoretical Calculations for, a Novel Zinc Complex." Journal of Chemical Research 41, no. 10 (October 2017): 586–90. http://dx.doi.org/10.3184/174751917x15065183733141.

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A novel zinc complex [Zn3(2,2′-bi-1H-imidazole)2(1H-biimidazole)2(SO4)2] n has been synthesised through a solvothermal reaction and structurally characterised by single-crystal X-ray diffraction. It has a one-dimensional chain-like structure with both tetrahedral and square pyramidal zinc atoms. A three-dimensional supramolecular framework is constructed through hydrogen-bonding interactions. Photoluminescence shows that the complex displays an emission in the blue region of the light spectrum that time-dependent density functional theory calculations reveal can be attributed to ligand-to-ligand charge transfer. Solid-state diffuse reflectance measurements show the existence of a narrow optical band gap of 2.08 eV.
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Jittipiboonwat, Prakottakarn, Thammanoon Chuasaard, and Apinpus Rujiwatra. "Crystal structure and photoluminescent properties of a new EuIII–phthalate–acetate coordination polymer." Acta Crystallographica Section E Crystallographic Communications 78, no. 5 (April 28, 2022): 536–39. http://dx.doi.org/10.1107/s2056989022004339.

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A new coordination polymer, poly[(acetato)aqua(μ3-phthalato)europium(III)], [Eu(C8H4O4)(CH3O2)(H2O)] n or [EuIII(phth)(OAc)(H2O)] (phth2− = phthalate and OAc− = acetate) was synthesized and characterized, revealing it to be a supramolecular assembly of one-dimensional [EuIII(phth)(OAc)(H2O)] chains. Each chain is built up of edge-sharing distorted tricapped trigonal–prismatic TPRS-{EuIIIO9} building motifs and assembled in a regular fashion through hydrogen-bonding and aromatic π–π interactions. The fully deprotonated phth2− ligand was shown to be an effective sensitizer, promoting the characteristic 5 D 0→7 FJ (J = 1–4) emissions of EuIII even in the presence of the non-sensitizing OAc− group.
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Li, Cui Jin, Guo Qiang Yin, Qing Bing Guo, Hong Mei Hang, Xin Hua Zhou, and Sheng Gong. "Synthesis, Structure and Photoluminescent Properties of Zn(II) -Complex with 2,4,6-tris-(benzimidazolyl-2-yl)pyridine Ligand." Advanced Materials Research 239-242 (May 2011): 2997–3000. http://dx.doi.org/10.4028/www.scientific.net/amr.239-242.2997.

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This hydrothermal reaction of tridentate rigid 2,4,6-tris-(benzimidazolyl-2-yl)pyridine (pytbzim) ligand, linear bridging 4,4′-bipyridine (4,4′-bpy) ligand and Zn(II) salts in acetonitrile and water mixed solvents generates a new complex {[Zn3I6(4,4′-bpy)(pytbzim)3].(H2O)2.(CH3CN)}n. The asymmetry unit of complex contains a [ZnI2(pytbzim)] and a {[Zn2I2(4,4′-bpy)2(pytbzim)2] units, which further construct into a three-dimensional supramolecular networks through p-p stacking interaction and rich hydrogen bonds between units and solvents. The solid state photoluminescence studies reveal good fluorescent properties of the pytbzim ligand and Zn(II)-complex at room temperature.
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22

Prodius, Denis, Magdalena Wilk-Kozubek, and Anja-Verena Mudring. "Synthesis, structural characterization and luminescence properties of 1-carboxymethyl-3-ethylimidazolium chloride." Acta Crystallographica Section C Structural Chemistry 74, no. 6 (May 8, 2018): 653–58. http://dx.doi.org/10.1107/s2053229618005272.

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A microcrystalline carboxyl-functionalized imidazolium chloride, namely 1-carboxymethyl-3-ethylimidazolium chloride, C7H11N2O2 +·Cl−, has been synthesized and characterized by elemental analysis, attenuated total reflectance Fourier transform IR spectroscopy (ATR-FT-IR), single-crystal X-ray diffraction, thermal analysis (TGA/DSC), and photoluminescence spectroscopy. In the crystal structure, cations and anions are linked by C—H...Cl and C—H...O hydrogen bonds to create a helix along the [010] direction. Adjacent helical chains are further interconnected through O—H...Cl and C—H...O hydrogen bonds to form a (10\overline{1}) layer. Finally, neighboring layers are joined together via C—H...Cl contacts to generate a three-dimensional supramolecular architecture. Thermal analyses reveal that the compound melts at 449.7 K and is stable up to 560.0 K under a dynamic air atmosphere. Photoluminescence measurements show that the compound exhibits a blue fluorescence and a green phosphorescence associated with spin-allowed (1π←1π*) and spin-forbidden (1π←3π*) transitions, respectively. The average luminescence lifetime was determined to be 1.40 ns for the short-lived (1π←1π*) transition and 105 ms for the long-lived (1π←3π*) transition.
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23

Lee, Seung Jun, Jiwon Lee, Shin Woo Lee, Jun Hyup Lee, and Jae Young Jho. "Photoluminescent supramolecular liquid crystals formed by hydrogen bonding of non-mesogenic donor and acceptors." Journal of Industrial and Engineering Chemistry 18, no. 2 (March 2012): 767–74. http://dx.doi.org/10.1016/j.jiec.2011.11.123.

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Yang, Yan, Liu-Ting Yan, Xiao Li, Xian-Ming Chen, Rong-Huan Qin, and Wen-Gui Duan. "Synthesis and Crystal Structure of a Green Photoluminescent 1D Cobalt(II) Coordination Polymer Constructed from 2,2` Bibenzimidazole." Zeitschrift für Naturforschung B 66, no. 9 (September 1, 2011): 889–93. http://dx.doi.org/10.1515/znb-2011-0904.

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Hydrothermal reaction of Co(NO3)2 ·6H2O with H2bibm and H4cta at 120 ◦C yielded a novel 1D Co(II) coordination polymer, [Co(H2bibm)(cta)]n · nH2O (1) [H2bibm = 2,2`-bibenzimidazole, cta = citrate], in which distorted CoN2O4 octahedra are linked by the cta ligands in a tetradentate bridging mode to construct a zigzag chain with Co...·Co distances of 7.510(1) A° . A 2D supramolecular network is formed by π-π stacking with a face-to-face distance of 3.55 °A between the imidazole rings of the 2,2`-bibenzimidazole ligands and interchain O-H· · ·O and N-H· · ·O hydrogen bond interactions. Complex 1 displays strong green fluorescence emissions at 538 nm in th+e solid state upon photoexcitation at 395 nm at room temperature.
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25

Zhao, Fang-Hua, Shi-Yao Li, Wen-Yu Guo, Zi-Hao Zhao, Xiao-Wen Guo, Yu-Shuo Li, Sheng-Qing Fan, and Zhong-Lin Li. "Two new CdII MOFs of 1,4-bis(1H-benzimidazol-1-yl)butane and flexible dicarboxylate ligands: luminescence sensing towards Fe3+." Acta Crystallographica Section C Structural Chemistry 76, no. 11 (October 22, 2020): 1024–33. http://dx.doi.org/10.1107/s2053229620013698.

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Two new CdII MOFs, namely, two-dimensional (2D) poly[[[μ2-1,4-bis(1H-benzimidazol-1-yl)butane](μ2-heptanedioato)cadmium(II)] tetrahydrate], {[Cd(C7H10O4)(C18H18N4)]·4H2O} n or {[Cd(Pim)(bbimb)]·4H2O} n (1), and 2D poly[diaqua[μ2-1,4-bis(1H-benzimidazol-1-yl)butane](μ4-decanedioato)(μ2-decanedioato)dicadmium(II)], [Cd2(C10H16O4)2(C18H18N4)(H2O)2] n or [Cd(Seb)(bbimb)0.5(H2O)] n (2), have been synthesized hydrothermally based on the 1,4-bis(1H-benzimidazol-1-yl)butane (bbimb) and pimelate (Pim2−, heptanedioate) or sebacate (Seb2−, decanedioate) ligands. Both MOFs were structurally characterized by single-crystal X-ray diffraction. In 1, the CdII centres are connected by bbimb and Pim2− ligands to generate a 2D sql layer structure with an octameric (H2O)8 water cluster. The 2D layers are further connected by O—H...O hydrogen bonds, resulting in a three-dimensional (3D) supramolecular structure. In 2, the CdII centres are coordinated by Seb2− ligands to form binuclear Cd2 units which are linked by bbimb and Seb2− ligands into a 2D hxl layer. The 2D layers are further connected by O—H...O hydrogen bonds, leading to an 8-connected 3D hex supramolecular network. IR and UV–Vis spectroscopy, thermogravimetric analysis and solid-state photoluminescence analysis were carried out on both MOFs. Luminescence sensing experiments reveal that both MOFs have good selective sensing towards Fe3+ in aqueous solution.
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26

Xu, Bing, Zhong-Xi Han, and Huai-Ming Hu. "Three new cadmium(II) coordination compounds based on 2-(pyridin-3-yl)-1H-imidazo[4,5-f][1,10]phenanthroline: syntheses, structures and luminescence." Zeitschrift für Naturforschung B 75, no. 9-10 (November 26, 2020): 843–49. http://dx.doi.org/10.1515/znb-2020-0095.

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AbstractThree cadmium(II) coordination compounds, [Cd(pyip)2(CH3COO)2] (1), [Cd(pyip)2(cis-OH)2]·H2O (2) and [Cd(pyip)2(trans-OH)2]·3H2O (3), based on 2-(pyridin-3-yl)-1H-imidazo[4,5-f][1,10]phenanthroline (pyip) have been synthesized by a hydrothermal method and characterized by elemental analysis, IR spectroscopy and single-crystal X-ray diffraction. Compounds 1, 2 and 3 all appear as monomeric entities, which are further assembled into supramolecular networks by hydrogen bonding interactions. The Cd(II) centers in compounds 2 and 3 lie in distinct octahedral environments with the hydroxyl groups in cis- and trans-positions, respectively, leading to the generation of different structures . Photoluminescence studies of compounds 1–3 were also carried out.
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27

Park, Ki-Min, Cheol Joo Moon, Sanghyun Paek, and Youngjin Kang. "Synthesis, crystal structure and photophysical properties of chlorido[2-(2′,6′-difluoro-2,3′-bipyridin-6-yl-κN 1)-6-(pyridin-2-yloxy-κN)phenyl-κC 1]platinum(II)." Acta Crystallographica Section E Crystallographic Communications 77, no. 2 (January 8, 2021): 107–10. http://dx.doi.org/10.1107/s2056989021000128.

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The title compound, [Pt(C21H12F2N3O)Cl], crystallizes with two crystallographically independent molecules (A and B) in the asymmetric unit, which adopt similar conformations. The PtII atoms in both molecules adopt distorted square-planar geometries, coordinated by one C and two N atoms from the tridentate 2′,6′-difluoro-6-[3-(pyridin-2-yloxy)phenyl]-2,3′-bipyridine ligand and a chloride anion: the C and Cl atoms are trans. In the crystal, C—H...Cl/F hydrogen bonds, F...π and weak π–π stacking interactions between adjacent A and B molecules and between pairs of inversion-related B molecules lead to the formation of a two-dimensional supramolecular network lying parallel to the ab plane. The sheets are stacked along the c-axis direction and linked by F...π and weak π–π stacking interactions between pairs of inversion-related A molecules, forming a three-dimensional supramolecular network. The photoluminescence quantum efficiency of the title compound in the blue–green region of the visible region (λmax = 517 and 544 nm) is estimated to be ∼0.2–0.3, indicating that the title compound could be a suitable candidate as the emitting material in organic light-emitting diode (OLED) applications.
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Park, Ki-Min, Cheol Joo Moon, Sanghyun Paek, and Youngjin Kang. "Synthesis, crystal structure and photophysical properties of chlorido[2-(2′,6′-difluoro-2,3′-bipyridin-6-yl-κN 1)-6-(pyridin-2-yloxy-κN)phenyl-κC 1]platinum(II)." Acta Crystallographica Section E Crystallographic Communications 77, no. 2 (January 8, 2021): 107–10. http://dx.doi.org/10.1107/s2056989021000128.

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The title compound, [Pt(C21H12F2N3O)Cl], crystallizes with two crystallographically independent molecules (A and B) in the asymmetric unit, which adopt similar conformations. The PtII atoms in both molecules adopt distorted square-planar geometries, coordinated by one C and two N atoms from the tridentate 2′,6′-difluoro-6-[3-(pyridin-2-yloxy)phenyl]-2,3′-bipyridine ligand and a chloride anion: the C and Cl atoms are trans. In the crystal, C—H...Cl/F hydrogen bonds, F...π and weak π–π stacking interactions between adjacent A and B molecules and between pairs of inversion-related B molecules lead to the formation of a two-dimensional supramolecular network lying parallel to the ab plane. The sheets are stacked along the c-axis direction and linked by F...π and weak π–π stacking interactions between pairs of inversion-related A molecules, forming a three-dimensional supramolecular network. The photoluminescence quantum efficiency of the title compound in the blue–green region of the visible region (λmax = 517 and 544 nm) is estimated to be ∼0.2–0.3, indicating that the title compound could be a suitable candidate as the emitting material in organic light-emitting diode (OLED) applications.
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29

Yan, Li, Yufei Xiao, Chuanbi Li, Meiling Liu, Wenyu Li, and Nan Yang. "Hydrogen Bonded Supramolecular Framework in Inorganic-Organic Hybrid Compounds: Syntheses, Crystal Structures, and Photoluminescent Properties." Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry 44, no. 6 (February 25, 2014): 829–35. http://dx.doi.org/10.1080/15533174.2013.791844.

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30

Sun, Di, Rong-Bin Huang, and Lan-Sun Zheng. "Halogen Bonds in Two Silver(I) Mixed-ligand Supramolecular Frameworks: Synthesis, Structure and Photoluminescence." Zeitschrift für Naturforschung B 66, no. 10 (October 1, 2011): 1035–41. http://dx.doi.org/10.1515/znb-2011-1008.

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Two silver(I) tetrachlorophthalates incorporating aminopyrimidyl ligands, namely [Ag4(apym)4(tcpta)2]n (1) and [Ag2(dmapym)(tcpta)]n (2), (apym = 2-aminopyrimidine, dmapym = 2-amino-4,6-dimethylpyrimidine, H2tcpta = tetrachlorophthalic acid), were synthesized and characterized by elemental analysis, IR spectroscopy and single-crystal X-ray diffraction. Both 1 and 2 form sheets which are assembled into 3D supramolecular frameworks via halogen bonds, hydrogen bonds and π...π interactions. Even adding two more methyl groups to the pyrimidyl ring does not change the dimensions of 1 and 2, but it influences the arrangement of the N- and O-donors in the solid state which in turn results in different types of halogen bonds. The photoluminescence properties of 1 and 2 were investigated in the solid state at room temperature.
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31

Jędrzejowska, Katarzyna, Jedrzej Kobylarczyk, Dorota Glosz, Emilia Kuzniak-Glanowska, Dominika Tabor, Monika Srebro-Hooper, Jakub J. Zakrzewski, Katarzyna Dziedzic-Kocurek, Tadeusz M. Muzioł, and Robert Podgajny. "Supramolecular cis-“Bis(Chelation)” of [M(CN)6]3− (M = CrIII, FeIII, CoIII) by Phloroglucinol (H3PG)." Molecules 27, no. 13 (June 26, 2022): 4111. http://dx.doi.org/10.3390/molecules27134111.

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Studies on molecular co-crystal type materials are important in the design and preparation of easy-to-absorb drugs, non-centrosymmetric, and chiral crystals for optical performance, liquid crystals, or plastic phases. From a fundamental point of view, such studies also provide useful information on various supramolecular synthons and molecular ordering, including metric parameters, molecular matching, energetical hierarchy, and combinatorial potential, appealing to the rational design of functional materials through structure–properties–application schemes. Co-crystal salts involving anionic d-metallate coordination complexes are moderately explored (compared to the generality of co-crystals), and in this context, we present a new series of isomorphous co-crystalline salts (PPh4)3[M(CN)6](H3PG)2·2MeCN (M = Cr, 1; Fe, 2; Co 3; H3PG = phloroglucinol, 1,3,5-trihydroxobenzene). In this study, 1–3 were characterized experimentally using SC XRD, Hirshfeld analysis, ESI-MS spectrometry, vibrational IR and Raman, 57Fe Mössbauer, electronic absorption UV-Vis-NIR, and photoluminescence spectroscopies, and theoretically with density functional theory calculations. The two-dimensional square grid-like hydrogen-bond {[M(CN)6]3−;(H3PG)2}∞ network features original {[M(CN)6]3−;(H3PG)4} supramolecular cis-bis(chelate) motifs involving: (i) two double cyclic hydrogen bond synthons M(-CN⋅⋅⋅HO-)2Ar, {[M(CN)6]3−;H2PGH}, between cis-oriented cyanido ligands of [M(CN)6]3− and resorcinol-like face of H3PG, and (ii) two single hydrogen bonds M-CN⋅⋅⋅HO-Ar, {[M(CN)6]3−;HPGH2}, involving the remaining two cyanide ligands. The occurrence of the above tectonic motif is discussed with regard to the relevant data existing in the CCDC database, including the multisite H-bond binding of [M(CN)6]3− by organic species, mononuclear coordination complexes, and polynuclear complexes. The physicochemical and computational characterization discloses notable spectral modifications under the regime of an extended hydrogen bond network.
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32

Hu, Dong-Cheng, Chao-Hu Xiao, Guo-Zhe Guo, Yun-Xia Yang, and Jia-Cheng Liu. "A one-dimensional silver(I) coordination polymer based on the 2-[2-(pyridin-4-yl)-1H-benzimidazol-1-ylmethyl]phenol ligand exhibiting photoluminescence." Acta Crystallographica Section C Crystal Structure Communications 69, no. 4 (March 8, 2013): 356–59. http://dx.doi.org/10.1107/s0108270113005817.

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A one-dimensional AgIcoordination complex,catena-poly[[silver(I)-μ-{2-[2-(pyridin-4-yl)-1H-benzimidazol-1-ylmethyl]phenol-κ2N2:N3}] perchlorate monohydrate], {[Ag(C19H15N3O)]ClO4·H2O}n, was synthesized by the reaction of 2-[2-(pyridin-4-yl)-1H-benzimidazol-1-ylmethyl]phenol (L) with silver perchlorate. In the complex, theLligands are arranged alternately and link AgIcations through one benzimidazole N atom and the N atom of the pyridine ring, leading to an extended zigzag chain structure. In addition, the one-dimensional chains are extended into a three-dimensional supramolecular architectureviaO—H...O hydrogen-bond interactions and π–π stacking interactions. The complex exhibits photoluminescence in acetonitrile solution, with an emission maximum at 390 nm, and investigation of the thermal stability reveals that the network structure is stable up to 650 K.
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33

Zeng, Wen-Quan, Wei Huang, Chuan-Hui He, Rong Zou, Wei-Kang Jin, Xiu-Guang Yi, and Kun-Zhong Yang. "Preparation, crystal structure, time-dependent density theory and properties of a novel organic-inorganic hybrid up-conversion luminescence tetranuclear complex." Journal of Chemical Research 47, no. 3 (May 2023): 174751982311779. http://dx.doi.org/10.1177/17475198231177955.

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A novel up-conversion luminescence tetranuclear sodium complex [Na4(5-(carboxymethyl 2-oxo-propyl) amino isophthalic acid)(H2O)9] is synthesized by a solvothermal reaction, and its crystal structure is determined by single-crystal X-ray diffraction. The title complex crystallizes as a triclinic system with the P [Formula: see text] space group and exists as an isolated tetranuclear complex. Numerous intermolecular hydrogen bonds and van der waals forces form a three-dimensional supramolecular network. Solid-state diffuse reflectance data show that there is a wide optical band gap of 2.91 eV. The solid-state photoluminescence spectrum reveals that the complex shows an up-conversion emission in the blue region of the light spectrum. Time-dependent density functional theory calculations reveal that this emission can be attributed to ligand-to-ligand charge transfer.
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34

Calderón-Díaz, Alvaro, Janet Arras, Ethan T. Miller, Nattamai Bhuvanesh, Colin D. McMillen, and Michael Stollenz. "Ethylene-Bridged Tetradentate Bis(amidines): Supramolecular Assemblies through Hydrogen Bonding and Photoluminescence upon Deprotonation." European Journal of Organic Chemistry 2020, no. 22 (May 27, 2020): 3243–50. http://dx.doi.org/10.1002/ejoc.202000207.

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35

Zhou, Qian-Kun, Lin Wang, and Dong Liu. "Construction of a three-dimensional supramolecular framework based on an anionic cadmium(II) coordination network and protonated dipyridine organic cations." Acta Crystallographica Section C Structural Chemistry 74, no. 8 (July 6, 2018): 889–93. http://dx.doi.org/10.1107/s2053229618009233.

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As a class of multifunctional materials, crystalline supramolecular complexes have attracted much attention because of their unique architectures, intriguing topologies and potential applications. In this article, a new supramolecular compound, namely catena-poly[4,4′-(buta-1,3-diene-1,4-diyl)dipyridin-1-ium [(μ4-benzene-1,2,4,5-tetracarboxylato-κ6 O 1,O 1′:O 2:O 4,O 4′:O 5)cadmium(II)]], {(C14H14N2)[Cd(C10H2O8)]} n or {(1,4-H2bpbd)[Cd(1,2,4,5-btc)]} n , has been prepared by the self-assembly of Cd(NO3)2·4H2O, benzene-1,2,4,5-tetracarboxylic acid (1,2,4,5-H4btc) and 1,4-bis(pyridin-4-yl)buta-1,3-diene (1,4-bpbd) under hydrothermal conditions. The title compound has been structurally characterized by IR spectroscopy, elemental analysis, powder X-ray diffraction and single-crystal X-ray diffraction analysis. Each CdII centre is coordinated by six O atoms from four different (1,2,4,5-btc)4− tetraanions. Each CdII cation, located on a site of twofold symmetry, binds to four carboxylate groups belonging to four separate (1,2,4,5-btc)4− ligands. Each (1,2,4,5-btc)4− anion, situated on a position of \overline{1} symmetry, binds to four crystallographically equivalent CdII centres. Neighbouring CdII cations interconnect bridging (1,2,4,5-btc)4− anions to form a three-dimensional {[Cd(1,2,4,5-btc)]2−} n anionic coordination network with infinite tubular channels. The channels are visible in both the [1\overline{1}0] and the [001] direction. Such a coordination network can be simplified as a (4,4)-connected framework with the point symbol (4284)(4284). To balance the negative charge of the metal–carboxylate coordination network, the cavities of the network are occupied by protonated (1,4-H2bpbd)2+ cations that are located on sites of twofold symmetry. In the crystal, there are strong hydrogen-bonding interactions between the anionic coordination network and the (1,4-H2bpbd)2+ cations. Considering the hydrogen-bonding interactions, the structure can be further regarded as a three-dimensional (4,6)-connected supramolecular architecture with the point symbol (4264)(42687·84). The thermal stability and photoluminescence properties of the title compound have been investigated.
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36

Yuan, Gan-Yin, Lei Zhang, Meng-Jie Wang, and Kou-Lin Zhang. "Synthesis and characterization of a cadmium(II)–organic supramolecular coordination compound based on the multifunctional 2-amino-5-sulfobenzoic acid ligand." Acta Crystallographica Section C Structural Chemistry 72, no. 12 (November 4, 2016): 939–46. http://dx.doi.org/10.1107/s2053229616016326.

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Much attention has been paid by chemists to the construction of supramolecular coordination compounds based on the multifunctional ligand 5-sulfosalicylic acid (H3SSA) due to the structural and biological interest of these compounds. However, no coordination compounds have been reported for the multifunctional amino-substituted sulfobenzoate ligand 2-amino-5-sulfobenzoic acid (H2asba). We expected that H2asba could be a suitable building block for the assembly of supramolecular networks due to its interesting structural characteristics. The reaction of cadmium(II) nitrate with H2asba in the presence of the auxiliary flexible dipyridylamide ligandN,N′-bis[(pyridin-4-yl)methyl]oxamide (4bpme) under ambient conditions formed a new mixed-ligand coordination compound, namely bis(3-amino-4-carboxybenzenesulfonato-κO1)diaquabis{N,N′-bis[(pyridin-4-yl)methyl]oxamide-κN}cadmium(II)–N,N′-bis[(pyridin-4-yl)methyl]oxamide–water (1/1/4), [Cd(C7H6NO5S)2(C14H14N4O2)2(H2O)2]·C14H14N4O2·4H2O, (1), which was characterized by single-crystal and powder X-ray diffraction analysis (PXRD), FT–IR spectroscopy, thermogravimetric analysis (TG), and UV–Vis and photoluminescence spectroscopic analyses in the solid state. The central CdIIatom in (1) occupies a special position on a centre of inversion and exhibits a slightly distorted octahedral geometry, being coordinated by two N atoms from two monodentate 4bpme ligands, four O atoms from two monodentate 4-amino-3-carboxybenzenesulfonate (Hasba−) ligands and two coordinated water molecules. Interestingly, complex (1) further extends into a threefold polycatenated 0D→2D (0D is zero-dimensional and 2D is two-dimensional) interpenetrated supramolecular two-dimensional (4,4) layer through intermolecular hydrogen bonding. The interlayer hydrogen bonding further links adjacent threefold polycatenated two-dimensional layers into a three-dimensional network. The optical properties of complex (1) indicate that it may be used as a potential indirect band gap semiconductor material. Complex (1) exhibits an irreversible dehydration–rehydration behaviour. The fluorescence properties have also been investigated in the solid state at room temperature.
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37

Liu, Yen-Hui, Cheng-Chung Huang, Chih-Chia Cheng, and Arnold C. M. Yang. "Supramolecular confinement and photoluminescence enhancements of a conjugated polymer by hydrogen bonding in solid films." Materials Chemistry and Physics 277 (February 2022): 125505. http://dx.doi.org/10.1016/j.matchemphys.2021.125505.

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38

Bykov, Andrey V., Tatiana A. Shestimerova, Mikhail A. Bykov, Konstantin A. Lyssenko, Vladislav M. Korshunov, Mikhail T. Metlin, Ilya V. Taydakov, and Andrei V. Shevelkov. "Molecular and Supramolecular Structure of a New Luminescent Hybrid Compound: (C5N2H14)2[BiBr6]Br·H2O." Inorganics 10, no. 11 (October 25, 2022): 181. http://dx.doi.org/10.3390/inorganics10110181.

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The reaction of homopiperazine, C5N2H12, with BiBr3 in strong hydrobromic acid affords a new organic-inorganic hybrid (C5N2H14)2[BiBr6]Br·H2O. It crystallizes in the orthorhombic space group, Pbca, with unit cell dimensions of a = 15.0775 (2), b = 15.7569 (2), and c = 20.7881 (4) Å, and eight formula units per unit cell. The crystal structure features slightly distorted octahedral BiBr63− and monoatomic Br− anions in the inorganic substructure and C5N2H142+ dications and adjacent water molecules in the organic substructure. Various weak interactions that include (N)H···Br, (N)H···O, and (O)H···Br hydrogen bonds ensure the assembling of the structural moieties into a 3D supramolecular structure. (C5N2H14)2[BiBr6]Br·H2O shows two emission bands in the photoluminescence spectrum, a rather narrow deep-blue PL at 432 nm, and a broadband red PL centered at 650 nm. Their nature and relations to the crystal structure are discussed in this paper.
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39

Chen, Wen-Tong. "Crystal structure and photophysical properties of a novel polyoxomolybdate porphyrin." Acta Crystallographica Section C Structural Chemistry 76, no. 12 (November 9, 2020): 1062–67. http://dx.doi.org/10.1107/s2053229620014461.

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A novel polyoxomolybdate with a diprotonated porphyrin as counter-cation, namely, 5,10,15,20-tetrakis(4-carboxyphenyl)-21H,22H,23H,24H-porphine(2+) hexamolybdate(VI) pentahydrate, (C48H32N4O8)[Mo6O19]·5H2O or (H2TCPP)[Mo6O19]·5H2O, I, was prepared via the hydrothermal reaction of MoCl5, 5,10,15,20-tetrakis(4-carboxyphenyl)-21H,23H-porphine (TCPP) and distilled water. The crystal structure of hydrated polyoxometalate (POM) salt I was characterized by single-crystal X-ray diffraction. The compound is characterized by an isolated (zero-dimensional, 0D) structure, because it cannot extend via covalent bonds. The structure contains one [Mo6O19]2− anion, one (H2TCPP)2+ cation and five lattice water molecules. Each of the Mo6+ ions is six-coordinated and displays a distorted octahedral motif. The (H2TCPP)2+ cation displays a distorted saddle motif. A three-dimensional (3D) supramolecular framework is formed via hydrogen-bonding interactions. The compound shows a red photoluminescence emission.
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40

Bensegueni, Mohamed Abdellatif, Aouatef Cherouana, and Hocine Merazig. "In situ synthesis, crystal structures, topology and photoluminescent properties of poly[di-μ-aqua-diaqua[μ3-4-(1H-tetrazol-1-id-5-yl)benzoato-κ4 O:O,O′:O′′]barium(II)] and poly[μ-aqua-diaqua[μ3-4-(1H-tetrazol-1-id-5-yl)benzoato-κ4 O:O,O′:O′]strontium(II)]." Acta Crystallographica Section E Crystallographic Communications 76, no. 6 (May 19, 2020): 877–83. http://dx.doi.org/10.1107/s2056989020006386.

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Two alkaline-earth coordination compounds, [Ba(C8H4N4O2)(H2O)4] n , (I), and [Sr(C8H4N4O2)(H2O)3] n , (II), from the one-pot hydrolysis transformation of benzoyl chloride and the in situ self-assembled [2 + 3] cycloaddition of nitrile are presented. These coordination compounds are prepared by reacting 4-cyanobenzoyl chloride with divalent alkaline-earth salts (BaCl2 and SrCl2) in aqueous solution under hydrothermal conditions. The mononuclear coordination compounds (I) and (II) show the same mode of coordination of the organic ligands. The cohesion of the crystalline structures is provided by hydrogen bonds and π-stacking interactions, thus forming three-dimensional supramolecular networks. The two compounds have a three-dimensional (3,6)-connected topology, and the structural differences between them is in the number of water molecules around the alkaline earth metals. Having the same emission frequencies, the compounds exhibit photoluminescence properties with a downward absorption value from (I) to (II).
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41

Yan, Li, Chuanbi Li, Jia Fu, and Mingzhe Sun. "Hydrogen Bonded Supramolecular Framework in Inorganic-Organic Hybrid Compound: Syntheses, Crystal Structure, Thermal Stability, and Photoluminescent Properties." Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry 44, no. 6 (February 25, 2014): 814–18. http://dx.doi.org/10.1080/15533174.2013.791841.

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42

Li, Li, Daofeng Sun, Guangru Tian, Xinyu Song, and Sixiu Sun. "A new photoluminescent supramolecular inorganic-organic hybrid zincophosphate complex pillared by carboxylate ligand through hydrogen bonding interactions." Crystal Research and Technology 44, no. 3 (March 2009): 331–35. http://dx.doi.org/10.1002/crat.200800392.

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43

Li, Jia-Ming, Kun-Huan He, Zhong-Feng Shi, Hui-Yuan Gao, and Yi-Min Jiang. "Synthesis, crystal structures, and thermal and spectroscopic properties of two Cd(II) metal-organic frameworks with a versatile ligand." Zeitschrift für Naturforschung B 71, no. 8 (August 1, 2016): 909–17. http://dx.doi.org/10.1515/znb-2016-0077.

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AbstractTwo new metal-organic frameworks, namely, [Cd(L)(H2O)]n (1) and {[Cd0.5(L)(4,4′-bipy)0.5][Cd0.5(H2O)(4,4′-bipy)0.5]·H2O}n (2), where H2L = N-pyrazinesulfonyl-glycine and 4,4′-bipy = 4,4′-bipyridine, have been synthesized and characterized by single-crystal X-ray diffraction, IR spectroscopy, elemental, thermogravimetric, and photoluminescent analysis. X-ray diffraction crystallographic analyses indicate that 1 displays a distorted octahedral metal coordination in a 3-connected (4, 82) topology, while the molecular structure of 2 has a 4-connected (4, 4) topology with two perfectly octahedrally coordinated Cd centers. The L2– ligand serves as a N,N,O-tridentate, μ2-pyrazine-bridging, and μ2-carboxylate-bridging ligand in 1, and as a N,O-bidentate and μ2-carboxylate-bridging ligand in 2. In the crystal, a 3D supramolecular architecture is formed by O–H···O hydrogen bond interactions in 1, but through O–H···O as well as π···π stacking in 2. The two compounds show intense fluorescence in the solid state at room temperature.
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Hou, Yi-Xuan, and Dong Liu. "A three-dimensional supramolecular framework based on the interlinkage of an interpenetrating diamondoid coordination network." Acta Crystallographica Section C Structural Chemistry 73, no. 11 (October 6, 2017): 869–73. http://dx.doi.org/10.1107/s2053229617013560.

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In the development of coordination-driven crystalline materials, O- and N-atom donors from carboxylate and pyridyl-based ligands are widely used classes of multidentate bridging ligands composed of several terminal coordinating groups linked by either rigid or flexible spacers. The rigidity of the ligands can play a vital role in the determination of the structures formed. A new CdII supramolecular compound, namely poly[μ-adipato-κ2 O 1:O 4-μ-adipato-κ4 O 1,O 1′:O 4,O 4′-diaquabis[μ-1,4-bis(pyridin-4-yl)-1,3-butadiene-κ2 N:N′]dicadmium(II)], [Cd2(C6H8O4)2(C14H12N2)2(H2O)2] n , (I), has been synthesized by the self-assembly of Cd(NO3)2·4H2O, adipic acid (hexane-1,6-dioic acid; H2adp) and the dipyridyl ligand 1,4-bis(pyridin-4-yl)buta-1,3-diene (1,4-bpbd) under hydrothermal conditions. Single-crystal X-ray diffraction analysis reveals that each CdII centre is located in a distorted octahedral coordination environment, coordinated by one water O atom, three carboxylate O atoms from two different adp2− ligands and two N atoms from two different 1,4-bpbd ligands. The Cd(H2O) units are interconnected by the μ2,κ2-adp2−, μ2,κ4-adp2− and 1,4-bpbd ligands, which lie across centres of inversion, to give a 66-dia network. Large cavities within a single diamondoid network permit the mutual threefold interpenetration of crystallographically equivalent frameworks. Hydrogen-bonding interactions between the coordinated water molecules and adp2− carboxylate O atoms anchor the interpenetrating networks into a unique three-dimensional supramolecular structure. Topologically, taking the coordinated water molecules and CdII centres as nodes, the whole architecture can be simplified as a binodal (3,7)-connected supramolecular framework. The identity of (I) was further characterized by IR spectroscopy, elemental analysis, thermogravimetric analysis and powder X-ray diffraction. The solid-state photoluminescence properties of (I) were also investigated.
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45

Charoensuk, Suwitra, Jing Tan, Mohini Sain, and Hathaikarn Manuspiya. "A Single Crystal Hybrid Ligand Framework of Copper(II) with Stable Intrinsic Blue-Light Luminescence in Aqueous Solution." Nanomaterials 11, no. 9 (September 2, 2021): 2281. http://dx.doi.org/10.3390/nano11092281.

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Single-crystal solid–liquid dual-phase hybrid organic–inorganic ligand frameworks with reversible sensing response facilitated by external stimuli have received significant attention in recent years. This report presents a significant leap in designing electronic structures that display reversible dual-phase photoluminescence properties from single-crystal hybrid ligand frameworks. Three-dimensional Cu(C3N2H4)4Cl2 complex frameworks were formed through the intermolecular hydrogen bonding and π⋯π stacking supramolecular interactions. The absorption band peaks at 627 nm were assigned to d–d transition showing 10Dq = 15,949 cm−1 and crystal field stabilization energy (CFSE) = 0.6 × 10Dq = 114.4 kJmol−1, while the ligand-to-metal charge transfer (LMCT) of complexes was displayed at 292 nm. The intense luminescence band results from LMCT present at 397 nm. Considering its structure, air stability, framework forming and stable luminescence in aqueous solution, the Cu(C3N2H4)4Cl2 complex shows potential for luminescence Cu-based sensors using emission intensity to detect heavy metal ion species.
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46

He, Cui-Hong, Jin-Ming Hao, Shu-Lin Xiao, and Guang Hua Cui. "Synthesis, Structures, and Catalytic Properties of Two Silver(I) Coordination Polymers Constructed from 1,4-Bis(benzimidazolyl)butane." Zeitschrift für Naturforschung B 68, no. 11 (November 1, 2013): 1207–13. http://dx.doi.org/10.5560/znb.2013-3115.

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Using a hydrothermal synthesis method, two silver(I) complexes, [Ag(bbbm)(1,3-HBDC)]n (1) and [Ag(bbbm)(1,2-HBDC)]n (2) (bbbm = 1,1´-(1,4-butanediyl)bis-1H-benzimidazole, 1,3-H2BDC = 1,3-benzenedicarboxylic acid, 1,2-H2BDC = 1,2-benzenedicarboxylic acid), have been synthesized and characterized by elemental analysis, IR spectra, thermogravimetric (TG) analysis and singlecrystal X-ray diffraction. The silver centers display different environments with a distorted T-shaped geometry in 1, and a linear geometry in 2. Both chain structures of 1 and 2 are bridged by bbbm in a bis-monodentate coordination mode. 1 is further linked to generate a 3D supramolecular architecture via p-p stacking interactions and intermolecular O-H· · ·O hydrogen bonding. In 2, the ribbon-like chains are additionally assembled by two p-p stacking modes to form a layer motif. The photoluminescence of 1 and 2 was investigated in the solid state. 1 and 2 possess a remarkable activity for degradation of methyl orange by persulfate in a Fenton-like process.
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47

Liu, Guo-Cheng, Zhi-Chao Guo, Xiu-Li Wang, Yun Qu, Song Yang, and Hong-Yan Lin. "Tuning 1-D Pb(II) Coordination Polymers by Flexible and Semirigid Dicarboxylates: Synthesis, Structure and Properties." Zeitschrift für Naturforschung B 67, no. 3 (March 1, 2012): 185–91. http://dx.doi.org/10.1515/znb-2012-0301.

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Two new one-dimensional (1-D) Pb(II) coordination polymers, namely, [Pb(3-pdip)(L1)]·H2O (1) and [Pb(3-pdip)(L2)] (2) [L1H2 = 1,6-hexanedioic acid, L2H2 = homophthalic acid, 3-pdip = 2-(3-pyridyl)imidazo[4,5-f]1,10-phenanthroline] have been obtained from hydrothermal reactions of Pb(II) nitrate with the phenanthroline derivative and the two dicarboxylic acids. Single-crystal X-ray diffraction analysis reveals that compound 1 is a staircase-like double-chain coordination polymer constructed from binuclear [Pb2N4O8] subunits and pairs of [L1]2− anions. Compound 2 is a linear coordination polymer connected via two μ2-η2:η1 carboxylate groups from [L2]2− anions. Furthermore, adjacent chains of 1 and 2 are extended into 3-D supramolecular networks by hydrogen bonds and π-π stacking interactions. The organic carboxylic acids with different flexibility determine the structures of the coordination polymers. Moreover, the thermal stabilities and photoluminescence properties of compounds 1 and 2 were investigated.
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48

Yin, Xia, Jun Fan, Zhi Hong Wang, Sheng Run Zheng, Jing Bo Tan, and Wei Guang Zhang. "Luminescent lanthanide complexes with 4-acetamidobenzoate: Synthesis, supramolecular assembly via hydrogen bonds, crystal structures and photoluminescence." Journal of Solid State Chemistry 184, no. 7 (July 2011): 1850–57. http://dx.doi.org/10.1016/j.jssc.2011.05.018.

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49

Wang, Xiu-Yan, Yu He, and Fei-Fei Liu. "Two New Cd(II) and Co(II) Coordination Polymers Based on a 1,10- Phenanthroline Derivative and Tri- or Tetra-Carboxylates: Syntheses, Structures and Photoluminesce." Zeitschrift für Naturforschung B 67, no. 5 (May 1, 2012): 459–64. http://dx.doi.org/10.5560/znb.2012-0029.

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Two new coordination polymers constructed with the 1,10-phenanthroline derivative 2-(2-chloro- 6-fluorophenyl)-1H-imidazo[4,5-f][1,10]-phenanthroline (L) and different carboxylates, namely, [Cd2(L)2(1,3,5-BTC)(Cl)]·H2O (1) and [Co2(L)2(1,2,4,5-BTC)(H2O)2] (2), have been synthesized under hydrothermal conditions (1,3,5-BTC = 1,3,5-benzenetricarboxylate anion and 1,2,4,5-BTC = 1,2,4,5-benzenetetracarboxylate anion). Crystal data for 1: C47H25Cd2Cl3F2N8O7, triclinic, space group P¯1, a = 10:1084(5), b = 14:9285(7), c = 15:2930(4)Å , α = 72:1050(10), β = 86:160(2), γ = 79:6000(10)°, V = 2159:88(16) °A3, Z = 2. Crystal data for 2: C24H13ClCoFN4O5, triclinic, space group P1¯, a = 7:4767(15), b = 10:094(2), c = 14:772(3)Å , α = 91:23(3), β = 100:95(3), γ = 106:57(3)°, V = 1045:8(4) Å3, Z = 2. Their crystal structures have been determined by singlecrystal X-ray diffraction analyses, and the compounds further characterized by physico-chemical and spectroscopic methods. In 1, each 1,3,5-BTC anion connects five Cd(II) atoms to form a double chain. These chains are extended into 2D supramolecular networks through μ - μ interactions. N-H...Cl, N - H...O and O - H...N hydrogen bonding interactions further stabilize the network of 1. In 2, each 1,2,4,5-BTC anion bridges four Co(II) atoms to yield a chain. μ-μ interactions among adjacent chains result in a 2D supramolecular architecture.
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50

Wang, Hangning, Le Chen, Liang Fang, Lingyu Li, Jiaojiao Fang, Chunhua Lu, and Zhongzi Xu. "Supramolecular hydrogel hybrids having high mechanical property, photoluminescence and light-induced shape deformation capability: Design, preparation and characterization." Materials & Design 160 (December 2018): 194–202. http://dx.doi.org/10.1016/j.matdes.2018.09.018.

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