Relevant bibliographies by topics / Anion-π

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Anion-π'

Author: Grafiati
Published: 10 March 2023

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Journal articles on the topic "Anion-π"

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Li, Lei, Yu-Jian Hong, Dong-Yang Chen, Wang-Chuan Xiao, and Mei-Jin Lin. "Anion–π interactions in lithium–organic redox flow batteries." Chemical Communications 55, no. 16 (2019): 2364–67. http://dx.doi.org/10.1039/c8cc09834d.

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The interactions between the electrolyte anions and electron-deficient redox-active organic molecules (anion–π interactions) have strong influences on the battery properties due to the anion–π-induced formation of radical anions or sandwich-like aggregates.
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Mirocki, Artur, and Artur Sikorski. "Structural Characterization of Multicomponent Crystals Formed from Diclofenac and Acridines." Materials 15, no. 4 (February 17, 2022): 1518. http://dx.doi.org/10.3390/ma15041518.

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Multicomponent crystals containing diclofenac and acridine (1) and diclofenac and 6,9-diamino-2-ethoxyacridine (2) were synthesized and structurally characterized. The single-crystal XRD measurements showed that compound 1 crystallizes in the triclinic P-1 space group as a salt cocrystal with one acridinium cation, one diclofenac anion, and one diclofenac molecule in the asymmetric unit, whereas compound 2 crystallizes in the triclinic P-1 space group as an ethanol solvate monohydrate salt with one 6,9-diamino-2-ethoxyacridinium cation, one diclofenac anion, one ethanol molecule, and one water molecule in the asymmetric unit. In the crystals of the title compounds, diclofenac and acridines ions and solvent molecules interact via N–H⋯O, O–H⋯O, and C–H⋯O hydrogen bonds, as well as C–H⋯π and π–π interactions, and form heterotetramer bis[⋯cation⋯anion⋯] (1) or heterohexamer bis[⋯cation⋯ethanol⋯anion⋯] (2). Moreover, in the crystal of compound 1, acridine cations and diclofenac anions interact via N–H⋯O hydrogen bond, C–H⋯π and π–π interactions to produce blocks, while diclofenac molecules interact via C–Cl⋯π interactions to form columns. In the crystal of compound 2, the ethacridine cations interact via C–H⋯π and π–π interactions building blocks, while diclofenac anions interact via π–π interactions to form columns.
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Martínez-Camarena, Álvaro, Matteo Savastano, Carla Bazzicalupi, Antonio Bianchi, and Enrique García-España. "Stabilisation of Exotic Tribromide (Br3−) Anions via Supramolecular Interaction with a Tosylated Macrocyclic Pyridinophane. A Serendipitous Case." Molecules 25, no. 14 (July 10, 2020): 3155. http://dx.doi.org/10.3390/molecules25143155.

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Tetraaza-macrocyclic pyridinophane L-Ts, decorated with a p-toluenesulfonyl (tosyl; Ts) group, appear to be a useful tool to provide evidence on how the interplay of various supramolecular forces can help stabilise exotic anionic species such as tribromide (Br3−) anions. Indeed, crystals of (H2L-Ts)(Br3)1.5(NO3)0.5 unexpectedly grew from an acidic (HNO3) aqueous solution of L-Ts in the presence of Br− anions. The crystal structure of this compound was determined by single crystal XRD analysis. Hydrogen bonds, salt-bridges, anion-π, π-π stacking, and van der Waals interactions contribute to stabilising the crystal lattice. The observation of two independent Br3− anions stuck over the π-electron densities of pyridine and tosyl ligand groups, one of them being sandwiched between two pyridine rings, corroborates the significance of anion-π interactions for N-containing heterocycles. We show herein the possibility of detecting anion-π contacts from fingerprint plots generated by Hirshfeld surface analysis, demonstrating the effective usage of this structural investigation technique to further dissect individual contributions of stabilising supramolecular forces.
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Kim, Hee-Joon. "Assembly of Sn(IV)-Porphyrin Cation Exhibiting Supramolecular Interactions of Anion···Anion and Anion···π Systems." Molbank 2022, no. 4 (September 25, 2022): M1454. http://dx.doi.org/10.3390/m1454.

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Trans-diaqua[meso-tetrakis(4-pyridyl)porphyrinato]Sn(IV) dinitrate complexes were assembled in a two-dimensional manner via hydrogen bonding between aqua ligands and pyridyl substituents. Interestingly, this supramolecular assembly was accompanied by unconventional noncovalent interactions, such as anion···anion and anion···π interactions, which were confirmed by X-ray crystallographic analysis. Two nitrate anions close to 2.070 Å were constrained in a confined space surrounded by four hydrogen-bonded Sn(IV)-porphyrin cations. The nitrate anion was also 3.433 Å away from the adjacent pyrrole ring, and the dihedral angle between the two mean planes was estimated to be 7.39°. The preference of the anion···π interaction was related to the electron-deficient π-system owing to the high-valent Sn(IV) center and cationic nature of the porphyrin complex. These two unconventional noncovalent interactions played an important role in the formation of a one-dimensional array with pairs of Sn(IV)-porphyrin cation and nitrate anion.
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Panteleieva, Olha S., Vira V. Ponomarova, Alexander V. Shtemenko, and Kostiantyn V. Domasevitch. "Supramolecular networks supported by the anion...π linkage of Keggin-type heteropolyoxotungstates." Acta Crystallographica Section C Structural Chemistry 76, no. 8 (July 21, 2020): 753–62. http://dx.doi.org/10.1107/s205322962000950x.

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Anion...π interactions are newly recognized weak supramolecular forces which are relevant to many types of electron-deficient aromatic substrates. Being less competitive with respect to conventional hydrogen bonding, anion...π interactions are only rarely considered as a crystal-structure-defining factor. Their significance dramatically increases for polyoxometalate (POM) species, which offer extended oxide surfaces for maintaining dense aromatic/inorganic stacks. The structures of tetrakis(caffeinium) μ12-silicato-tetracosa-μ2-oxido-dodecaoxidododecatungsten trihydrate, (C8H11N4O2)4[SiW12O40]·3H2O, (1), and tris(theobrominium) μ12-phosphato-tetracosa-μ2-oxido-dodecaoxidododecatungsten ethanol sesquisolvate, (C7H9N4O2)3[PW12O40]·1.5C2H5OH, (2), support the utility of anion...π interactions as a special kind of supramolecular synthon controlling the structures of ionic lattices. Both caffeinium [(HCaf)+ in (1)] and theobrominium cations [(HTbr)+ in (2)] reveal double stacking patterns at both axial sides of the aromatic frameworks, leading to the generation of anion...π...anion bridges. The latter provide the rare face-to-face linkage of the anions. In (1), every square face of the metal–oxide cuboctahedra accepts the interaction and the above bridges yield flat square nets, i.e. {(HCaf+)2[SiW12O40]4−} n . Two additional cations afford single stacks only and they terminate the connectivity. Salt (2) retains a two-dimensional (2D) motif of square nets, with anion...π...anion bridges involving two of the three (HTbr)+ cations. The remaining cations complete a fivefold anion...π environment of [PW12O40]3−, acting as terminal groups. This single anion...π interaction is influenced by the specific pairing of (HTbr)+ cations by double amide-to-amide hydrogen bonding. Nevertheless, invariable 2D patterns in (1) and (2) suggest the dominant role of anion...π interactions as the structure-governing factor, which is applicable to the construction of noncovalent linkages involving Keggin-type oxometalates.
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Aramaki, Yoshitaka. "Anion-π Catalyst." Journal of Synthetic Organic Chemistry, Japan 75, no. 9 (2017): 965–66. http://dx.doi.org/10.5059/yukigoseikyokaishi.75.965.

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Zhao, Yingjie, César Beuchat, Yuya Domoto, Jadwiga Gajewy, Adam Wilson, Jiri Mareda, Naomi Sakai, and Stefan Matile. "Anion−π Catalysis." Journal of the American Chemical Society 136, no. 5 (January 23, 2014): 2101–11. http://dx.doi.org/10.1021/ja412290r.

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Cotelle, Yoann, Vincent Lebrun, Naomi Sakai, Thomas R. Ward, and Stefan Matile. "Anion-π Enzymes." ACS Central Science 2, no. 6 (May 23, 2016): 388–93. http://dx.doi.org/10.1021/acscentsci.6b00097.

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Schottel, Brandi L., Helen T. Chifotides, and Kim R. Dunbar. "Anion-π interactions." Chem. Soc. Rev. 37, no. 1 (2008): 68–83. http://dx.doi.org/10.1039/b614208g.

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Giese, Michael, Markus Albrecht, Gergana Ivanova, Arto Valkonen, and Kari Rissanen. "Geometrically diverse anions in anion–π interactions." Supramolecular Chemistry 24, no. 1 (November 3, 2011): 48–55. http://dx.doi.org/10.1080/10610278.2011.622384.

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Dissertations / Theses on the topic "Anion-π"

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Chen, Jing. "SOLUTION AND SOLID STATE INTERACTIONS BETWEEN IONIC π-SYSTEMS." UKnowledge, 2006. http://uknowledge.uky.edu/gradschool_diss/289.

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Although attractive interactions between π systems (π-π interaction) have been known for many years, understanding of its origin is still incomplete. Quantitative measuring of π-stacking is challenging due to the weak nature of the π-π interaction. This dissertation aims at elucidating a quantitative conformational analysis by NMR ring current anisotropy of an organic compound capable of intramolecular π-stacking in solution and studying charge effects on the stacking of π-systems. This dissertation offers four contributions to the area. (1) A general approach to four-state, conformational analysis based on the magnetic anisotropy of molecules undergoing fast dynamic exchange is described. (2) Study unveiled the importance of charges in the conformation of a dication in the solution. (3) Novel aromatic salt pairs of triangulene derivatives with the delocalized cation-anion interaction were synthesized and studied. (4) Study unveiled ionic π-systems preferred face-to-face stacking due to strong cation-π and anion-cation attractions. A general protocol for the application of magnetic anisotropy to quantitative multi-state conformational analysis of molecules undergoing fast conformational exchange was suggested in the current study. The reliability of this method of conformational analysis was checked by the mass balance. VT-NMR was also conducted to study the enthalpic parameters. This technique can be further used to study canonical interactions such as ion pairing, hydrogen boning, and molecular recognition. In the current study, dependence of the probe conformations on the dispersive interactions at the aromatic edges between solvent and probes was tested by conformational distributions of the fluorinated derivatives (2b and 2c) of the probe molecule (1a). Solution and solid studies of these molecules put the previous conclusion drawn by the Cammers group in question. Current studies show that the dispersive interaction at the aromatic edge could not be the predominant force on the conformational changes in the probe molecule 1a during the fluoroalkanol perturbation. This study indicated that charges might be important in the formation of the folding conformations in the solution and solid state of 1a, 2b, and 2c. A contribution of this thesis was to prepare and study a conformational model that lacked charges. The previous molecules were charged. The solid-state structures of pyridinium-derived aromatic rings from the CSD (Cambridge Structural Database) were studied to investigate the π-π interaction between cationic π-systems in solid state. Novel aromatic salt pairs of triangulene derivatives with the delocalized cation-anion interaction were synthesized to study the π-π interaction between two aromatic rings that carried opposite charges. This study showed that the interaction between ionic π-systems can be enhanced by cation-π and anion-cation attractions. The stackings of these π-systems introduce more overlap, closer packing and stronger atomic contact than that of the solid states of comparable neutral species. Cation-π and anion-cation attractions are synergistic in aromatic salts.
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Kawaguchi, Genta. "Systematic Control of the Electronic States in Halogen-Bonded π-d Hybrid Molecular Conductors with Employing Anion Mixing, High Pressure, and Strong Magnetic Field." 京都大学 (Kyoto University), 2016. http://hdl.handle.net/2433/216168.

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Yang, Chongqing, Dongqing Wu, Wuxue Zhao, Weizhen Ye, Zhixiao Xu, Fan Zhang, and Xinliang Feng. "Anion-induced self-assembly of positively charged polycyclic aromatic hydrocarbons towards nanostructures with controllable two-dimensional morphologies." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-224930.

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A controllable self-assembly strategy of positively charged polycyclic aromatic hydrocarbons (PCPAH) towards the formation of rectangle sheets and ribbon-like nanostructures has been achieved by choosing divalent anions with different sizes. In contrast, only rod-like nanostructures are obtained from PCPAH with univalent anions. It is revealed that the divalent anions play a key role in guiding the packing of PCPAH, which provides an unprecedented route to fabricate two-dimensional nanostructures.
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Yang, Chongqing, Dongqing Wu, Wuxue Zhao, Weizhen Ye, Zhixiao Xu, Fan Zhang, and Xinliang Feng. "Anion-induced self-assembly of positively charged polycyclic aromatic hydrocarbons towards nanostructures with controllable two-dimensional morphologies." Royal Society of Chemistry, 2016. https://tud.qucosa.de/id/qucosa%3A30330.

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A controllable self-assembly strategy of positively charged polycyclic aromatic hydrocarbons (PCPAH) towards the formation of rectangle sheets and ribbon-like nanostructures has been achieved by choosing divalent anions with different sizes. In contrast, only rod-like nanostructures are obtained from PCPAH with univalent anions. It is revealed that the divalent anions play a key role in guiding the packing of PCPAH, which provides an unprecedented route to fabricate two-dimensional nanostructures.
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Yi, Hai Verfasser], Markus [Akademischer Betreuer] Albrecht, and Dieter [Akademischer Betreuer] [Enders. "The binding behavior of fluorinated π-receptors with anions and other aromatics / Hai Yi ; Markus Albrecht, Dieter Enders." Aachen : Universitätsbibliothek der RWTH Aachen, 2015. http://d-nb.info/1127051350/34.

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Savastano, Matteo. "Polyfunctional Receptors for Ionic Species: Theoretical and Applicative Aspects." Doctoral thesis, 2018. http://hdl.handle.net/2158/1116579.

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The endless game of Cations and Anions, together with their coordination chemistries, is presented and broken down for the Reader into several levels. First, the de facto asymmetry existing between Cation and Anion Coordination Chemistry is introduced and explained from an historical point of view, undertaking a brief excursus from prehistory up to present-day. In second instance, concepts and tools of Supramolecular Chemistry are set forth, including Host-Guest Chemistry, mainly with metal cations in mind, and an overview of intermolecular forces, anion recognition being the focus. Lastly, core differences between Anions and Cations are discussed from a chemico-physical perspective building on the aforesaid supramolecular concepts. Experimental results and their interest are arranged following the natural distinction between oppositely charged species. On the Cations’ side applied research was conducted, focusing on the obtainment of Pd(II)-based green nanostructured heterogeneous catalysts for the Sonogashira cross-coupling reaction through a non-covalent approach. Ligands design, choice of the functionalization strategy and of the supporting substrate (MWCNTS) are illustrated in the light of the principles of Supramolecular Chemistry exposed in the introductory part. The material is organized hierarchically moving from the design, synthesis and characterization of isolated tectons up to the self-assembled working catalysts, passing for the study of the binary receptor-metal cation, receptor-MWCNTs and metal cation-MWCNTs systems. Beyond the promising results, other possible applications of the overall methodology are sketched out, with particular reference to the preparation of small (< 5 nm) supported Cu(0) nanoparticles. The Anionic section has a more basic research connotation, focusing on solution thermodynamics and solid-state structural features of the anion-π interaction. For this purpose, a new series of homologous ligands (L1-L4), featuring s-tetrazine as a binding site, was prepared. Protonation and structural features of the free ligands are pre-emptively presented and related to variations in their structures. Results of the study of their interactions with anions is broken down into four different paragraphs as follows: introductory investigation featuring inorganic anions, complexes of organic anions, the case-study of L2, forming adducts with the whole series of halide anions, and stabilization of polyiodide systems in the solid state through anion-π interactions, in view of their possible use as crystalline conductors. 21 crystal structures and about 100 determined equilibrium constants (shared between protonation and complex formation reactions) strongly support anion-π interaction as a valuable asset for the design of selective receptors for anions, shedding light on its interplay with different supramolecular forces and solvent effects beyond what can be summarized in these few lines.
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Wei, Yu-Hsin, and 魏育信. "Stabilized Koopmans' Theorem Calculations on the π* Anion States of 1,4,5,8-Tetrahydronaphthalene and 1,,4,5,8,9,10-Hexahydro-Anthracene." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/06926573282767444302.

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碩士
東海大學
應用化學系研究所
86
The exponent stabilized Koopmans' theorem is used to calculatethe energies of the π* anion states of 1,4,5,8-tetrahydronaphthalene(isotetralin). The results indicate that the ordering of π* anion statesis 2 B3g < 2 Au < 3B3g. This order of anion sataes is the same as that which would prevail were only through-space (TS) interactions present.The through-bond (TB) interactions destabilize all the π* orbitals;however, they do not change the order. The π* anion states of 1,4,5,8,9,10-hexahydro-anthracene (HHA)are also assigned by means of the exponent stabilized Koopmans' theoremmolecular orbital calculations. The calculations indicate that the ordering of π* anion states is 2 Au ~ 3 B3g < 4 B3g < 3 Au. The order of the anion states is not exactly the same as which that would prevailwere only TS interactions present. The TB interactions destabilizedall the π* orbitals in unequal amounts and change the order.-1 -aStabilized Koopmans' Theorem Calculations on the π* Anion States of 1,4,5,8-Tetrahydronaphthalene and 1,,4,5,8,9,10-Hexahydro-Anthracene
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LEONI, LUCA. "Fine-tuning of supramolecular selectivity in metal–salophen-based receptors." Doctoral thesis, 2019. http://hdl.handle.net/11573/1296788.

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Il progetto di ricerca portato avanti nei tre anni di dottorato si colloca nell'ambito della Chimica Supramolecolare, disciplina che riguarda lo studio delle interazioni deboli che portano alla formazione, in modo reversibile, di sistemi molecolari più complessi. I complessi metallo-salofen (N,N’-bis(salicilidene)-1,2-fenilenediammina = salofen), che da tempo sono oggetto di studio nel laboratorio in cui ho svolto la tesi di dottorato, sono complessi metallici che consentono lo studio di fenomeni di riconoscimento molecolare che si basano su interazioni acido-base di Lewis. Durante questi tre anni sono stati sintetizzati e studiati complessi salofenici dello zinco, del nichel, del palladio e del dicatione uranile. Sono stati sintetizzati e caratterizzati recettori salofen-uranile decorati con anelli aromatici differentemente sostituiti. Attraverso studi di binding con sali di tetrabutilammonio TBAX (X- =Cl- ,Br- ) in cloroformio e acetonitrile è stata messa in luce la presenza di interazioni anione-π e l’influenza dell’ingombro sterico sulla selettività del riconoscimento, modulando l’accesso al sito di coordinazione. Sono state anche ottenute diverse strutture cristallografiche che provano senza ambiguità la presenza di interazioni anione-π fra tali recettori e vari alogenuri di tetralchilammonio. Questo progetto ha previsto la collaborazione con il gruppo di ricerca coordinato dal Prof. Kari Rissanen dell'Università di Jyväskylä (Finlandia). Nell’ultima parte di questo lavoro, sono stati sintetizzati e caratterizzati una serie omologa di complessi non simmetrici di salophen-uranile con anelli aromatici direttamente legati allo scheletro salofenico, aventi un unico sostituente in posizione para (N(CH3)2, OCH3, H, Br, NO2). Attraverso studi di binding con il sale di tetrabutilammonio cloruro TBAX (X- = Cl-) in acetonitrile, sono state ottenute buone correlazioni lineari di energia libera che supportano il fatto che anelli aromatici elettrondeficienti stabilizzano il complesso supramolecolare con l’anione grazie all’interazione anione-π, mentre anelli aromatici elettron-ricchi diminuiscono la costante di binding per effetti repulsivi in modo diametralmente opposto. Complessi metallo-salofen di Zn, Ni, and Pd, sono stati ottenuti nello stato solido attraverso sintesi innescate solo da energia meccanica. La sintesi ti tali composti si è rilevata facile, veloce e senza l’uso di solventi. Infatti, la meccanochimica rappresenta una valida alternativa alle classiche sintesi basate su solventi organici spesso cancerogeni. I prodotti ottenuti sono stati studiati attraverso tecniche complementari nello stato solido: diffrazione a raggi X di polveri, diffrazione a raggi-X di cristalli singoli e spettroscopia NMR allo stato solido. Oltre a ciò, sono state ottenute quattro nuove strutture cristallografiche delle molecole sintetizzate. Questo progetto ha previsto la collaborazione con il gruppo di ricerca coordinato dal Prof. Wouters dell'Università di Namur (Belgio).
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Book chapters on the topic "Anion-π"

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Gomila, Rosa M., and Antonio Frontera. "CHAPTER 5. Anion–π Catalysis." In Catalysis Series, 122–36. Cambridge: Royal Society of Chemistry, 2019. http://dx.doi.org/10.1039/9781788016490-00122.

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Qui˜nonero, David, Antonio Frontera, and Pere M. Deyà. "Anion-π Interactions in Molecular Recognition." In Anion Coordination Chemistry, 321–61. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2011. http://dx.doi.org/10.1002/9783527639502.ch6.

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Bauzá, Antonio, Pere M. Deyà, and Antonio Frontera. "Anion-π Interactions in Supramolecular Chemistry and Catalysis." In Challenges and Advances in Computational Chemistry and Physics, 471–500. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-14163-3_16.

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Bauzá, Antonio, and Antonio Frontera. "Construction of Supramolecular Assemblies Based on Anion-π Interactions." In Non-covalent Interactions in the Synthesis and Design of New Compounds, 199–212. Hoboken, NJ: John Wiley & Sons, Inc, 2016. http://dx.doi.org/10.1002/9781119113874.ch11.

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Wang, De-Xian. "Application of Anion-π Interaction on Supramolecular Self-Assembly." In Handbook of Macrocyclic Supramolecular Assembly, 253–75. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-2686-2_11.

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Wang, De-Xian. "Application of Anion-π Interaction on Supramolecular Self-Assembly." In Handbook of Macrocyclic Supramolecular Assembly, 1–23. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-1744-6_11-1.

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Pardasani, R. T., and P. Pardasani. "Exchange energy of dinuclear μ–oxo bridged ferric complex with o-iminobenzosemiquinonate π radical anion." In Magnetic Properties of Paramagnetic Compounds, Magnetic Susceptibility Data, Volume 1, 1109–11. Berlin, Heidelberg: Springer Berlin Heidelberg, 2021. http://dx.doi.org/10.1007/978-3-662-62478-4_458.

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Ballester, Pablo. "Anions and π-Aromatic Systems. Do They Interact Attractively?" In Recognition of Anions, 127–74. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/430_2007_070.

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Ahmad Rather, Ishfaq, and Rashid Ali. "Anion-π Catalysis: A Novel Supramolecular Approach for Chemical and Biological Transformations." In Current Topics in Chirality - From Chemistry to Biology. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.95824.

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Catalysts by virtue of lowering the activation barrier helps in the completion of a chemical reaction in a lesser amount of time without being themselves consumed. Utilizing the diverse non-covalent interactions in the design and construction of catalysts, recently anion-π interactions were also introduced, giving rise to an emerging field of anion-π catalysis. In the newly constructed anion-π catalysts, significant lowering of activation energy occurs by virtue of anion-π interactions. Till now, several important reactions generating chiral centers have been carried out on the π-acidic surfaces of anion-π catalysts, thereby revealing the significance of anion-π catalysis in the domain of asymmetric synthesis. The motive of this chapter is to highlight the role of anion-π catalysis in asymmetric synthesis and we surely believe that it will offer new opportunities in supramolecular chemistry.
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Riel, A. M. S., N. B. Wageling, D. A. Decato, and O. B. Berryman. "Anion–Arene Interactions and the Anion–π Phenomenon." In Comprehensive Supramolecular Chemistry II, 149–84. Elsevier, 2017. http://dx.doi.org/10.1016/b978-0-12-409547-2.12484-9.

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Conference papers on the topic "Anion-π"

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Sagan, Cole, and Etienne Garand. "PROBING BROAD π-RESONANCES OF TETRACENYL ANION." In 2020 International Symposium on Molecular Spectroscopy. Urbana, Illinois: University of Illinois at Urbana-Champaign, 2020. http://dx.doi.org/10.15278/isms.2020.fd04.

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Carrazana-Garcia, Jorge, Enrique Cabaleiro Lago, and Jesus Rodriguez Otero. "Topological Study of the Electron Density of Cation-π-Anion Complexes." In The 17th International Electronic Conference on Synthetic Organic Chemistry. Basel, Switzerland: MDPI, 2013. http://dx.doi.org/10.3390/ecsoc-17-e025.

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Juang, Chwan-Young, and Shiow-Yau Jeng. "Splitting energies on π∗ anion states of 1,4-cyclohexadiene via exponent stabilization method." In The first European conference on computational chemistry (E.C.C.C.1). AIP, 1995. http://dx.doi.org/10.1063/1.47645.

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