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Artículos de revistas sobre el tema "Supramolecular Phosphine"

Autor: Grafiati

Publicado: 6 de septiembre de 2023

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1

Llorente, Nuria, Héctor Fernández-Pérez, José L. Núñez-Rico, Lucas Carreras, Alicia Martínez-Carrión, Ester Iniesta, Andrés Romero-Navarro, Alba Martínez-Bascuñana y Anton Vidal-Ferran. "Efficient modular phosphorus-containing ligands for stereoselective catalysis". Pure and Applied Chemistry 91, n.º 1 (28 de enero de 2019): 3–15. http://dx.doi.org/10.1515/pac-2018-0805.

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Abstract Over several years, our research team has contributed to ligand design for metal-catalyzed stereoselective transformations. This has been achieved with the synthesis and application to organic transformations of interest of an array of structurally diverse P-containing ligands. These range from highly modular enantiopure phosphine–phosphite ligands to supramolecularly regulated enantioselective phosphorus-based catalysts. Our research in supramolecular interactions has also led to the discovery of an unprecedented halogen-bonded rhodium-catalyst.

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2

Darling, Scott L., Eugen Stulz, Neil Feeder, Nick Bampos y Jeremy K. M. Sanders. "Phosphine-substituted porphyrins as supramolecular building blocks". New Journal of Chemistry 24, n.º 5 (2000): 261–64. http://dx.doi.org/10.1039/b000482k.

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3

Seidenkranz, Daniel T., Jacqueline M. McGrath, Lev N. Zakharov y Michael D. Pluth. "Supramolecular bidentate phosphine ligand scaffolds from deconstructed Hamilton receptors". Chemical Communications 53, n.º 3 (2017): 561–64. http://dx.doi.org/10.1039/c6cc09198a.

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4

Moreno-Alcántar, Guillermo, Cristian Díaz-Rosas, Alberto Fernández-Alarcón, Luis Turcio-García, Marcos Flores-Álamo, Tomás Rocha-Rinza y Hugo Torrens. "Fluorination Effects in XPhos Gold(I) Fluorothiolates". Inorganics 9, n.º 2 (2 de febrero de 2021): 14. http://dx.doi.org/10.3390/inorganics9020014.

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Gold phosphine derivatives such as thiolates have been recently proposed as catalysts or catalyst precursors. The relevance of the supramolecular environment on the fine-tuning of the catalytical activity on these compounds incentivizes the use of tools that are convenient to characterize in detail the non-covalent landscape of the systems. Herein, we show the molecular and supramolecular diversity caused by the changes in the fluorination pattern in a family of new XPhos goldfluorothiolate derivatives. Furthermore, we studied the supramolecular interactions around the Au centers using quantum chemical topology tools, in particular the quantum theory of atoms in molecules (QTAIM) and the non-covalent interaction index. Our results give detailed insights into the fluorination effects on the strength of intramolecular and intermolecular interactions in these systems. We have also used QTAIM delocalization indexes to define a novel hapticity indicator. Finally, we assessed the trans influence of the fluorothiolates on the phosphine in terms of the change in the δ 31P-NMR. These results show the feasibility of the use of fluorination in the modulation of the electronic properties of Buchwald phosphine gold(I) compounds, and thereby its potential catalytic activity.

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5

Povolotskiy, A. V. "Kinetics of the photodecomposition of supramolecular alkynyl–phosphine complexes". Russian Journal of Physical Chemistry A 91, n.º 10 (20 de septiembre de 2017): 2052–54. http://dx.doi.org/10.1134/s0036024417100314.

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6

Knöfel, Nicolai D., Christoph Schoo, Tim P. Seifert y Peter W. Roesky. "A dimolybdenum paddlewheel as a building block for heteromultimetallic structures". Dalton Transactions 49, n.º 5 (2020): 1513–21. http://dx.doi.org/10.1039/c9dt04167b.

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A series of heteromultimetallic complexes, containing a Mo₂⁴⁺ core unit, were synthesized based on a bifunctional phosphine–carboxylic acid ligand system, leading i.e. to the formation of supramolecular structures via aurophilic interactions.

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7

Vasseur, Alexandre, Romain Membrat, Davide Palpacelli, Michel Giorgi, Didier Nuel, Laurent Giordano y Alexandre Martinez. "Synthesis of chiral supramolecular bisphosphinite palladacycles through hydrogen transfer-promoted self-assembly process". Chemical Communications 54, n.º 72 (2018): 10132–35. http://dx.doi.org/10.1039/c8cc06283h.

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P-Chiral secondary phosphine oxides react with Pd₂(dba)₃ in an acidic medium to provide chiral supramolecular bisphosphinite palladacycles through a H-transfer-based self-assembly process prior to SPO-promoted oxidative addition of an acid to a Pd(0) centre.

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8

Xu, Qiu, Fenbao Zhang, Michael C. Jennings y Richard J. Puddephatt. "New bis(phosphine-amide) ligands: Oxidation, coordination and supramolecular chemistry". Polyhedron 131 (julio de 2017): 46–51. http://dx.doi.org/10.1016/j.poly.2017.04.028.

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9

Karasik, Andrey A., Elvira I. Musina, Igor D. Strelnik, Irina R. Dayanova, Julia G. Elistratova, Asiya R. Mustafina y Oleg G. Sinyashin. "Luminescent complexes on a scaffold of P2N2-ligands: design of materials for analytical and biomedical applications". Pure and Applied Chemistry 91, n.º 5 (27 de mayo de 2019): 839–49. http://dx.doi.org/10.1515/pac-2018-0926.

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Abstract A variety of gold(I) and copper(I) complexes based on heterocyclic phosphine platform has been obtained. Due to the presence of exocyclic chromophoric pyridyl groups in the ligands complexes demonstrate noticeable phosphorescence. Cyclic nature of the phosphine ligands is responsible for supramolecular host-behavior of the complexes. Unique structure of complexes on a scaffold of the cyclic PNNP ligands favors the stimuli-induced structural reorganizations followed by stimuli-responsive luminescence. This, in turn, makes the complexes versatile building blocks for bottom-up design of smart nanomaterials for analytical and biomedical applications.

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10

Shankar, Bhaskaran, Palani Elumalai, Ramasamy Shanmugam, Virender Singh, Dhanraj T. Masram y Malaichamy Sathiyendiran. "New Class of Phosphine Oxide Donor-Based Supramolecular Coordination Complexes from an in Situ Phosphine Oxidation Reaction or Phosphine Oxide Ligands". Inorganic Chemistry 52, n.º 18 (28 de agosto de 2013): 10217–19. http://dx.doi.org/10.1021/ic401257w.

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11

Shankar, Bhaskaran, Ramar Arumugam, Palani Elumalai y Malaichamy Sathiyendiran. "Rhenium(I)-Based Monocyclic and Bicyclic Phosphine Oxide-Coordinated Supramolecular Complexes". ACS Omega 1, n.º 4 (4 de octubre de 2016): 507–17. http://dx.doi.org/10.1021/acsomega.6b00187.

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12

Daubignard, Julien, Remko J. Detz, Bas de Bruin y Joost N. H. Reek. "Phosphine Oxide Based Supramolecular Ligands in the Rhodium-Catalyzed Asymmetric Hydrogenation". Organometallics 38, n.º 20 (28 de agosto de 2019): 3961–69. http://dx.doi.org/10.1021/acs.organomet.9b00484.

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13

Moro, Artur J., Bertrand Rome, Elisabet Aguiló, Julià Arcau, Rakesh Puttreddy, Kari Rissanen, João Carlos Lima y Laura Rodríguez. "A coumarin based gold(i)-alkynyl complex: a new class of supramolecular hydrogelators". Organic & Biomolecular Chemistry 13, n.º 7 (2015): 2026–33. http://dx.doi.org/10.1039/c4ob02077d.

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A phosphine-gold(i)-alkynyl-coumarin complex, [Au{7-(prop-2-ine-1-yloxy)-1-benzopyran-2-one}(DAPTA)] (1), was synthesized and the formation of long luminescent fibers in solution was characterized via fluorescence microscopy and dynamic light scattering.

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14

Li, Ping, Mei Wang, Lin Chen, Ning Wang, Tingting Zhang y Licheng Sun. "Supramolecular self-assembly of a [2Fe2S] complex with a hydrophilic phosphine ligand". CrystEngComm 10, n.º 3 (2008): 267–69. http://dx.doi.org/10.1039/b713159c.

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15

Nasser, Nasser y Richard J. Puddephatt. "Supramolecular Polymers and Chiral Phosphine Oxides by Oxidation of Gold(I) Complexes". Journal of Inorganic and Organometallic Polymers and Materials 27, S1 (18 de mayo de 2017): 76–83. http://dx.doi.org/10.1007/s10904-017-0577-x.

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16

Burrows, Andrew D. "N-Pyrrolyl phosphine ligands: an analysis of their size, conformation and supramolecular interactions". CrystEngComm 3, n.º 46 (2001): 217. http://dx.doi.org/10.1039/b108813k.

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17

Senra, Jaqueline D., Luiz Fernando B. Malta, Andréa Luzia F. de Souza, Marta E. Medeiros, Lúcia C. S. Aguiar y O. A. C. Antunes. "Phosphine-free Heck reactions in aqueous medium using hydroxypropylated cyclodextrins as supramolecular hosts". Tetrahedron Letters 48, n.º 46 (noviembre de 2007): 8153–56. http://dx.doi.org/10.1016/j.tetlet.2007.09.095.

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18

Dance, Ian y Marcia Scudder. "Concerted supramolecular motifs: inverted sextuple aryl embraces in crystalline tris(9-anthracenyl)phosphine". Polyhedron 16, n.º 20 (enero de 1997): 3545–48. http://dx.doi.org/10.1016/s0277-5387(97)00122-8.

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19

Maugeri, Leonardo, Tomáš Lébl, David B. Cordes, Alexandra M. Z. Slawin y Douglas Philp. "Cooperative Binding in a Phosphine Oxide-Based Halogen Bonded Dimer Drives Supramolecular Oligomerization". Journal of Organic Chemistry 82, n.º 4 (febrero de 2017): 1986–95. http://dx.doi.org/10.1021/acs.joc.6b02822.

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20

Su, Hsin Y., Daniel Gorelik y Mark S. Taylor. "Chiral phosphine ligand libraries based on the Bull–James three-component supramolecular assembly". Supramolecular Chemistry 31, n.º 3 (6 de enero de 2019): 190–202. http://dx.doi.org/10.1080/10610278.2018.1564829.

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21

Shinde, Vijay, Daham Jeong y Seunho Jung. "An Amino-Chain Modified β-cyclodextrin: A Supramolecular Ligand for Pd(OAc)2 Acceleration in Suzuki–Miyaura Coupling Reactions in Water". Catalysts 9, n.º 2 (23 de enero de 2019): 111. http://dx.doi.org/10.3390/catal9020111.

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A well-designed and synthesized water-soluble class of β-cyclodextrin supported palladium complex PdLn@Et-β-CD could efficiently validate high catalytic activity and act as a supramolecular platform for phosphine-free Suzuki–Miyaura cross‐coupling reactions between arylboronic acid/ arylboronic ester and aryl halides in water under mild conditions. The presented novel PdLn@Pr-β-CD complex catalyst was characterized by NMR, XRD, FT-IR, and DSC analysis. Furthermore, the role of the PdLn@Et-β-CD fragment in the reaction mechanism studied by molecular complexation was proposed based on FT-IR, 2D NMR (ROESY) spectroscopy, FE-SEM, and DSC spectroscopic analysis. The important benefits of this technique comprise simple phosphine-free preparation of the palladium catalyst, a wide range of functional-group tolerance, and easy recyclability; this method, furthermore, eschews hazardous reagents or solvents.

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22

Ho, Peter C., Hilary A. Jenkins, James F. Britten y Ignacio Vargas-Baca. "Building new discrete supramolecular assemblies through the interaction of iso-tellurazole N-oxides with Lewis acids and bases". Faraday Discussions 203 (2017): 187–99. http://dx.doi.org/10.1039/c7fd00075h.

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The supramolecular macrocycles spontaneously assembled by iso-tellurazole N-oxides are stable towards Lewis bases as strong as N-heterocyclic carbenes (NHC) but readily react with Lewis acids such as BR₃ (R = Ph, F). The electron acceptor ability of the tellurium atom is greatly enhanced in the resulting O-bonded adducts, which consequently enables binding to a variety of Lewis bases that includes acetonitrile, 4-dimethylaminopyridine, 4,4′-bipyridine, triphenyl phosphine, a N-heterocyclic carbene and a second molecule of iso-tellurazole N-oxide.

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23

Zheng, Wei, Wei Wang, Shu-Ting Jiang, Guang Yang, Zhen Li, Xu-Qing Wang, Guang-Qiang Yin et al. "Supramolecular Transformation of Metallacycle-linked Star Polymers Driven by Simple Phosphine Ligand-Exchange Reaction". Journal of the American Chemical Society 141, n.º 1 (29 de noviembre de 2018): 583–91. http://dx.doi.org/10.1021/jacs.8b11642.

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24

Grachova, E. V. "Design of Supramolecular Cluster Compounds of Copper Subgroup Metals Based on Polydentate Phosphine Ligands". Russian Journal of General Chemistry 89, n.º 6 (junio de 2019): 1102–14. http://dx.doi.org/10.1134/s1070363219060045.

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25

Angermaier, Klaus, Alexander Sladek y Hubert Schmidbaur. "Gold(I) Complexes of Chiral Secondary Phosphines". Zeitschrift für Naturforschung B 51, n.º 12 (1 de diciembre de 1996): 1671–74. http://dx.doi.org/10.1515/znb-1996-1201.

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The reaction of (dimethylsulfide)gold(I) chloride and bromide with methyl(phenyl)phosphine in ṯetraẖydrof̱uran affords high yields of the colorless, crystalline, chiral complexes [Me(Ph)HP]AuCl/Br ( 1a, b). Treatment of la with potassium iodide in thf leads to a conversion into the corresponding iodide [Me(Ph)HP] Aul ( 1c). The compounds were characterized by their analytical and spectroscopic data, and the crystal structures of la, b have been determined. The two compounds are isomorphous. In the lattice the monomers form chain-like supramolecular aggregates through auriophilic Au-Au contacts. The chains contain both enantiomers following the sequence ..R S R S R S.., with the individual components related by crystal symmetry.

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26

Koshevoy, Igor O., Antti J. Karttunen, Sergey P. Tunik, Matti Haukka, Stanislav I. Selivanov, Alexei S. Melnikov, Pavel Yu Serdobintsev y Tapani A. Pakkanen. "Synthesis, Characterization, Photophysical, and Theoretical Studies of Supramolecular Gold(I)−Silver(I) Alkynyl-Phosphine Complexes". Organometallics 28, n.º 5 (9 de marzo de 2009): 1369–76. http://dx.doi.org/10.1021/om8010036.

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27

Fuentes, José A., Matthew L. Clarke y Alexandra M. Z. Slawin. "A supramolecular approach to chiral ligand modification: coordination chemistry of a multifunctionalised tridentate amine-phosphine ligand". New Journal of Chemistry 32, n.º 4 (2008): 689. http://dx.doi.org/10.1039/b712612c.

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28

Henderson, William, Brian K. Nicholson y Edward R. T. Tiekink. "Synthesis, characterisation, supramolecular aggregation and biological activity of phosphine gold(I) complexes with monoanionic thiourea ligands". Inorganica Chimica Acta 359, n.º 1 (enero de 2006): 204–14. http://dx.doi.org/10.1016/j.ica.2005.07.046.

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29

Williams, DaShawn, Jacob P. Brannon, Perumalreddy Chandrasekaran y S. Chantal E. Stieber. "A five-coordinate cobalt bis(dithiolene)–phosphine complex [Co(pdt)2(PTA)] (pdt = phenyldithiolene; PTA = 1,3,5-triaza-7-phosphaadamantane)". Acta Crystallographica Section E Crystallographic Communications 76, n.º 5 (24 de abril de 2020): 736–41. http://dx.doi.org/10.1107/s2056989020005447.

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The title compound, bis(1,2-diphenyl-2-sulfanylideneethanethiolato-κ2 S,S′)(1,3,5-triaza-7-phosphaadamantane-κP)cobalt(II) dichloromethane hemisolvate, [Co(pdt)2(PTA)]·0.5C2H4Cl2 or [Co(C14H10S2)2(C6H12N3P)]·0.5C2H4Cl2, contains two phenyldithiolene (pdt) ligands and a 1,3,5-triaza-7-phosphaadamantane (PTA) ligand bound to cobalt with the solvent 1,2-dichloroethane molecule located on an inversion center. The cobalt core exhibits an approximately square-pyramidal geometry with partially reduced thienyl radical monoanionic ligands. The supramolecular network is consolidated by hydrogen-bonding interactions primarily with nitrogen, sulfur and chlorine atoms, as well as parallel displaced π-stacking of the aryl rings. The UV–vis, IR, and CV data are also consistent with monoanionic dithiolene ligands and an overall CoII oxidation state.

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30

Szyrej, Malgorzata, Wanda Wieczorek y Lucyna A. Wozniak. "Phenylamino (diphenyl)phosphine selenide: supramolecular aggregation via weak N-H…Se, C-H…π and π…π interactions". Arkivoc 2011, n.º 6 (26 de junio de 2011): 286–94. http://dx.doi.org/10.3998/ark.5550190.0012.619.

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31

Swavey, Shawn, Zhenglai Fang y Karen J. Brewer. "Mixed-Metal Supramolecular Complexes Coupling Phosphine-Containing Ru(II) Light Absorbers to a Reactive Pt(II) through Polyazine Bridging Ligands". Inorganic Chemistry 41, n.º 9 (mayo de 2002): 2598–607. http://dx.doi.org/10.1021/ic010806f.

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32

Mathieson, Trevor, Annette Schier y Hubert Schmidbaur. "Supramolecular chemistry of gold(I) thiocyanate complexes with thiophene, phosphine and isocyanide ligands, and the structure of 2,6-dimethylphenyl isocyanide". Journal of the Chemical Society, Dalton Transactions, n.º 8 (2001): 1196–200. http://dx.doi.org/10.1039/b100117p.

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33

Hau, Franky Ka-Wah, Kai-Leung Cheung, Nianyong Zhu y Vivian Wing-Wah Yam. "Calixarene-based alkynyl-bridged gold(i) isocyanide and phosphine complexes as building motifs for the construction of chemosensors and supramolecular architectures". Organic Chemistry Frontiers 6, n.º 8 (2019): 1205–13. http://dx.doi.org/10.1039/c9qo00258h.

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A calixarene-based alkynyl-bridged Au(i) isocyanide complex with a triazolyl group as a receptor site has been synthesized and demonstrated to be a selective chemosensor for Zn²⁺ based on Au(i)⋯Au(i) interactions.

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34

Tzeng, Biing-Chiau, Wei-Chung Lo, Chi-Ming Che y Shie-Ming Peng. "Photophysical properties, crystal structure, and host–guest interaction of a luminescent tetranuclear gold(I)-phenylacetylide complex with a supramolecular phosphine ligand". Chem. Commun., n.º 2 (1996): 181–82. http://dx.doi.org/10.1039/cc9960000181.

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35

Abdur-Rashid, Kamaluddin, Alan J. Lough y Robert H. Morris. "Intra- and inter-ion-pair protonic-hydridic bonding in polyhydridobis(phosphine)rhenates". Canadian Journal of Chemistry 79, n.º 5-6 (1 de mayo de 2001): 964–76. http://dx.doi.org/10.1139/v01-071.

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The hexahydridobis(phosphine)rhenate anions, [ReH6(PR3)2]- (PR3 = PCy3, P-i-Pr3, PPh3, PMe3) were generated by potassium hydride deprotonation of the neutral heptahydride conjugate acids (ReH7(PR3)2), isolated as their [K(18-crown-6)]+ and [K(1,10-diaza-18-crown-6)]+ salts, and characterized by NMR and IR spectroscopy and elemental analyses. Structures from single crystal X-ray diffraction were obtained for the [K(1,10-diaza-18-crown-6)]+salts and these indicate the presence of short protonichydridic bonds involving the hydrides of the anions and the proton donor NH moieties of the cations. The structure of [K(1,10-diaza-18-crown-6)][ReH6(P-i-Pr3)2] adopts a one-dimensional zigzag chain with alternating cations and anions connected and held together by inter-ion N-H···Hx-Re interactions (x = 1 or 2). Short distances between the NH protons of the cations and hydrides of the anion ranging from 1.6 to 1.9 Å are estimated for this complex. A different kind of chain structure is observed for [K(1,10-diaza-18-crown-6)][ReH6(PMe3)2] in which the combined effects of inter-ion protonichydridic bonding (N-H···Hx-Re) and inter-ion electrostatic interactions (ReH-x···K+···H-xRe), result in one-dimensional networks of alternating cations and anions, with the metals and hydrides occupying the interior and the organic moieties of the phosphine ligands and crown ether lining the exterior of cylindrical supramolecular assemblies. A combination of intra- and inter-ion protonic-hydridic and intra-ion-pair electrostatic interactions in [K(1,10-diaza-18-crown-6)][ReH6(PPh3)2] result in the formation of discrete two-dimensional {[K(1,10-diaza-18-crown-6)][ReH6(PPh3)2]}4 tetramers. The PCy3 salt is disordered but appears to consist of isolated 1:1 ion pairs containing strong intra-ion-pair NH···HRe bonding. The solid-state IR spectra of the [K(1,10-diaza-18-crown-6)]+ salts show low-frequency shifts for the NH bands relative to [K(1,10-diaza-18-crown-6)][BPh4], and perturbed Re-H bands relative to those in the [K(18-crown-6)]+ salts. The magnitude of ΔνNH is related to the basicity of the anion as indicated by the pKαTHF of the conjugate acid form (ReH7(PR3)2), which increases as PPh3 < < PMe3 < P-i-Pr3 < PCy3. Solution 1H NMR, NOE, and T1 relaxation measurements of [K(1,10-diaza-18-crown-6)][ReH6(PPh3)2] indicate that these interactions also persist in toluene solutions of this compound.Key words: rhenium, hydride, phosphine, hydrogen bonding, self-assembly.

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36

Schull, Terence L., Leila Henley, Jeffrey R. Deschamps, Ray J. Butcher, Dermot P. Maher, Christopher A. Klug, Karen Swider-Lyons et al. "Organometallic Supramolecular Mixed-Valence Cobalt(I)/Cobalt(II) Aquo Complexes Stabilized with the Water-Soluble Phosphine Ligandp-TPPTP (p-triphenylphosphine triphosphonic acid)". Organometallics 26, n.º 9 (abril de 2007): 2272–76. http://dx.doi.org/10.1021/om060898m.

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37

Yang, Wei, Ke-Zhi Jiang, Xing Lu, Hua-Meng Yang, Li Li, Yixin Lu y Li-Wen Xu. "Molecular Assembly of an Achiral Phosphine and a Chiral Primary Amine: A Highly Efficient Supramolecular Catalyst for the EnantioselectiveMichael Reaction of Aldehydes with Maleimides". Chemistry - An Asian Journal 8, n.º 6 (3 de abril de 2013): 1182–90. http://dx.doi.org/10.1002/asia.201300141.

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38

Yang, Wei, Ke-Zhi Jiang, Xing Lu, Hua-Meng Yang, Li Li, Yixin Lu y Li-Wen Xu. "ChemInform Abstract: Molecular Assembly of an Achiral Phosphine and a Chiral Primary Amine: A Highly Efficient Supramolecular Catalyst for the Enantioselective Michael Reaction of Aldehydes with Maleimides." ChemInform 44, n.º 43 (7 de octubre de 2013): no. http://dx.doi.org/10.1002/chin.201343038.

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39

VanderWeide, Andrew I., Richard J. Staples y Shannon M. Biros. "Crystal structures of two bis-carbamoylmethylphosphine oxide (CMPO) compounds". Acta Crystallographica Section E Crystallographic Communications 75, n.º 7 (14 de junio de 2019): 991–96. http://dx.doi.org/10.1107/s205698901900820x.

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Two bis-carbamoylmethylphosphine oxide compounds, namely {[(3-{[2-(diphenylphosphinoyl)ethanamido]methyl}benzyl)carbamoyl]methyl}diphenylphosphine oxide, C36H34N2O4P2, (I), and diethyl [({2-[2-(diethoxyphosphinoyl)ethanamido]ethyl}carbamoyl)methyl]phosphonate, C14H30N2O8P2, (II), were synthesized via nucleophilic acyl substitution reactions between an ester and a primary amine. Hydrogen-bonding interactions are present in both crystals, but these interactions are intramolecular in the case of compound (I) and intermolecular in compound (II). Intramolecular π–π stacking interactions are also present in the crystal of compound (I) with a centroid–centroid distance of 3.9479 (12) Å and a dihedral angle of 9.56 (12)°. Intermolecular C—H...π interactions [C...centroid distance of 3.622 (2) Å, C—H...centroid angle of 146°] give rise to supramolecular sheets that lie in the ab plane. Key geometric features for compound (I) involve a nearly planar, trans-amide group with a C—N—C—C torsion angle of 169.12 (17)°, and a torsion angle of −108.39 (15)° between the phosphine oxide phosphorus atom and the amide nitrogen atom. For compound (II), the electron density corresponding to the phosphoryl group was disordered, and was modeled as two parts with a 0.7387 (19):0.2613 (19) occupancy ratio. Compound (II) also boasts a trans-amide group that approaches planarity with a C—N—C—C torsion angle of −176.50 (16)°. The hydrogen bonds in this structure are intermolecular, with a D...A distance of 2.883 (2) Å and a D—H...A angle of 175.0 (18)° between the amide hydrogen atom and the P=O oxygen atom. These non-covalent interactions create ribbons that run along the b-axis direction.

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40

Koshti, Vijay S., Anirban Sen, Dinesh Shinde y Samir H. Chikkali. "Self-assembly of P-chiral supramolecular phosphines on rhodium and direct evidence for Rh-catalyst-substrate interactions". Dalton Trans. 46, n.º 40 (2017): 13966–73. http://dx.doi.org/10.1039/c7dt02923c.

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The self-assembly of p-chiral supramolecular phosphines on a rhodium metal has been established and direct evidence to demonstrate the existence of hydrogen bonding between the supramolecular catalyst and the substrate has been presented.

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41

Kadokawa, Jun-ichi, Takuya Shoji y Kazuya Yamamoto. "Preparation of Amylose-Carboxymethyl Cellulose Conjugated Supramolecular Networks by Phosphorylase-Catalyzed Enzymatic Polymerization". Catalysts 9, n.º 3 (26 de febrero de 2019): 211. http://dx.doi.org/10.3390/catal9030211.

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Enzymatic polymerization has been noted as a powerful method to precisely synthesize polymers with complicated structures, such as polysaccharides, which are not commonly prepared by conventional polymerization. Phosphorylase is one of the enzymes which have been used to practically synthesize well-defined polysaccharides. The phosphorylase-catalyzed enzymatic polymerization is conducted using α-d-glucose 1-phosphate as a monomer, and maltooligosaccharide as a primer, respectively, to obtain amylose. Amylose is known to form supramolecules owing to its helical conformation, that is, inclusion complex and double helix, in which the formation is depended on whether a guest molecule is present or not. In this paper, we would like to report the preparation of amylose-carboxymethyl cellulose (CMC) conjugated supramolecular networks, by the phosphorylase-catalyzed enzymatic polymerization, using maltoheptaose primer-grafted CMC. When the enzymatic polymerization was carried out using the graft copolymer, either in the presence or in the absence of a guest polymer poly (ε-caprolactone) (PCL), the enzymatically elongated amylose chains from the primers on the CMC main-chain formed double helixes or inclusion complexes, depending on the amounts of PCL, which acted as cross-linking points for the construction of network structures. Accordingly, the reaction mixtures totally turned into hydrogels, regardless of the structures of supramolecular cross-linking points.

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42

Bennett, Martin A. "Brice Bosnich. 3 June 1936—13 April 2015". Biographical Memoirs of Fellows of the Royal Society 67 (4 de septiembre de 2019): 59–87. http://dx.doi.org/10.1098/rsbm.2019.0019.

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Brice Bosnich, an Australian inorganic chemist, graduated from the University of Sydney and obtained his PhD at the Australian National University, Canberra. He then worked successively at University College London, the University of Toronto and the University of Chicago. He had an abiding interest in stereochemistry and its relationship with chemical reactivity, and in the chirality and optical activity of coordination and organometallic complexes, mainly those of the d-block elements. His early studies concerned the topological and conformational behaviour of classical coordination compounds, mainly of cobalt(III), and made extensive use of the technique of circular dichroism. He put this background to elegant use in perhaps his most distinctive work, namely, the design and synthesis of a C 2 -symmetric ditertiary phosphine, ( S , S )-chiraphos, the rhodium(I) complex [Rh{Ph 2 PCH(CH 3 )CH(CH 3 )PPh 2 }] + of which catalysed efficiently the homogeneous hydrogenation of prochiral enamides to amino acids in high optical purity. Bosnich traced the high enantioselectivity to the chiral array of P-phenyl substituents that is generated on coordination of ( S , S )-chiraphos. In principle, catalytic enantioselective synthesis represents a powerful and economic method of introducing chirality into the synthesis of biologically active molecules, which, since the thalidomide tragedy, are required to be marketed only in optically pure forms. Dissymmetric ligands similar to ( S , S )-chiraphos are now routinely employed in this type of synthesis. Bosnich developed several other enantioselective processes based on organo-transition metal chemistry. He also had several quasi-theoretical interests, including the possible use of circular dichroism to determine the absolute configuration of chiral metal complexes, and the development of a molecular mechanics force field for metallocenes. He maintained a strong interest in the properties of multimetallic proteins and devoted much effort to the construction of chiral binucleating ligands. During the 7–8 years before his retirement from the University of Chicago in 2006, he shifted his research to supramolecular recognition by suitably designed metal complexes.

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43

Jagan, R., D. Sathya y K. Sivakumar. "A dihydrogen phosphate anionic network as a host lattice for cations in 1-methylpiperazine-1,4-diium bis(dihydrogen phosphate) and 2-(pyridin-2-yl)pyridinium dihydrogen phosphate–orthophosphoric acid (1/1)". Acta Crystallographica Section C Structural Chemistry 71, n.º 5 (9 de abril de 2015): 374–80. http://dx.doi.org/10.1107/s2053229615006518.

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In the salt 1-methylpiperazine-1,4-diium bis(dihydrogen phosphate), C5H13N22+·2H2PO4−, (I), and the solvated salt 2-(pyridin-2-yl)pyridinium dihydrogen phosphate–orthophosphoric acid (1/1), C10H9N2+·H2PO4−·H3PO4, (II), the formation of O—H...O and N—H...O hydrogen bonds between the dihydrogen phosphate (H2PO4−) anions and the cations constructs a three- and two-dimensional anionic–cationic network, respectively. In (I), the self-assembly of H2PO4−anions forms a two-dimensional pseudo-honeycomb-like supramolecular architecture along the (010) plane. 1-Methylpiperazine-1,4-diium cations are trapped between the (010) anionic layers through three N—H...O hydrogen bonds. In solvated salt (II), the self-assembly of H2PO4−anions forms a two-dimensional supramolecular architecture with open channels projecting along the [001] direction. The 2-(pyridin-2-yl)pyridinium cations are trapped between the open channels by N—H...O and C—H...O hydrogen bonds. From a study of previously reported structures, dihydrogen phosphate anions show a supramolecular flexibility depending on the nature of the cations. The dihydrogen phosphate anion may be suitable for the design of the host lattice for host–guest supramolecular systems.

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44

Zhang, Guoshuai, Haitao Han, Kaiyue Li, Hong Zhang y Wuping Liao. "Assembly of cobalt-p-sulfonatothiacalix[4]arene frameworks with phosphate, phosphite and phenylphosphonate ligands". Zeitschrift für Naturforschung B 76, n.º 10-12 (1 de noviembre de 2021): 827–33. http://dx.doi.org/10.1515/znb-2021-0138.

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Abstract Three cobalt-calixarene coordination frameworks, namely, {[Co4Cl(H4TC4AS)]4(HPO3)8}4− (CIAC-253), {[Co4Cl(H4TC4AS)]4(PO4)8}12− (CIAC-254) and {[Co4Cl(H4TC4AS)]3(Ph-PO3)6}3− (CIAC-255) were obtained by solvothermal reaction of a cobalt salt, sodium p-sulfonatothiacalix[4]arene (Na4H4TC4AS) and phosphate, phosphite and phosphonate ligands. In CIAC-253 and CIAC-254, the shuttlecock-like Co4Cl-(TC4AS) secondary building units (SBUs) are bridged by HPO3 2− or PO4 3− anions into two quadrilateral frameworks while in CIAC-255, the Co4Cl-(TC4AS) SBUs are linked into a triangular framework by phenylphosphonate anions. The supramolecular interactions between the phenyl groups of phosphonate and TC4AS play a crucial role in the formation of the triangle. Magnetic measurements revealed that all the cobalt(II) centers exhibit antiferromagnetic interactions.

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45

Liu, Shoujie, Yinjuan Chen, Li Yu, Yan Lin, Zhi Liu, Minmin Wang, Yanju Chen et al. "A supramolecular-confinement pyrolysis route to ultrasmall rhodium phosphide nanoparticles as a robust electrocatalyst for hydrogen evolution in the entire pH range and seawater electrolysis". Journal of Materials Chemistry A 8, n.º 48 (2020): 25768–79. http://dx.doi.org/10.1039/d0ta09644j.

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46

Hewitt, Sarah H., Georgina Macey, Romain Mailhot, Mark R. J. Elsegood, Fernanda Duarte, Alan M. Kenwright y Stephen J. Butler. "Tuning the anion binding properties of lanthanide receptors to discriminate nucleoside phosphates in a sensing array". Chemical Science 11, n.º 14 (2020): 3619–28. http://dx.doi.org/10.1039/d0sc00343c.

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47

Lim, Sang Ho, Yongxuan Su y Seth M. Cohen. "Supramolecular Tetrahedra of Phosphines and Coinage Metals". Angewandte Chemie 124, n.º 21 (5 de abril de 2012): 5196–99. http://dx.doi.org/10.1002/ange.201200730.

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48

Lim, Sang Ho, Yongxuan Su y Seth M. Cohen. "Supramolecular Tetrahedra of Phosphines and Coinage Metals". Angewandte Chemie International Edition 51, n.º 21 (5 de abril de 2012): 5106–9. http://dx.doi.org/10.1002/anie.201200730.

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49

Binkowski-Machut, Cécile, Michaël Canipelle, Hervé Bricout, Sébastien Tilloy, Frédéric Hapiot y Eric Monflier. "Supramolecular Trapping of Phosphanes by Cyclodextrins: A General Approach to Generate Phosphane Coordinatively Unsaturated Organometallic Complexes". European Journal of Inorganic Chemistry 2006, n.º 8 (abril de 2006): 1611–19. http://dx.doi.org/10.1002/ejic.200500925.

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50

Gao, Yuxia, Ying Li, Xia Zhao, Jun Hu y Yong Ju. "First preparation of a triterpenoid-based supramolecular hydrogel in physiological phosphate buffered saline". RSC Advances 5, n.º 123 (2015): 102097–100. http://dx.doi.org/10.1039/c5ra22967g.

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