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Artykuły w czasopismach na temat "Supramolecular Phosphine"
Llorente, Nuria, Héctor Fernández-Pérez, José L. Núñez-Rico, Lucas Carreras, Alicia Martínez-Carrión, Ester Iniesta, Andrés Romero-Navarro, Alba Martínez-Bascuñana i Anton Vidal-Ferran. "Efficient modular phosphorus-containing ligands for stereoselective catalysis". Pure and Applied Chemistry 91, nr 1 (28.01.2019): 3–15. http://dx.doi.org/10.1515/pac-2018-0805.
Pełny tekst źródłaDarling, Scott L., Eugen Stulz, Neil Feeder, Nick Bampos i Jeremy K. M. Sanders. "Phosphine-substituted porphyrins as supramolecular building blocks". New Journal of Chemistry 24, nr 5 (2000): 261–64. http://dx.doi.org/10.1039/b000482k.
Pełny tekst źródłaSeidenkranz, Daniel T., Jacqueline M. McGrath, Lev N. Zakharov i Michael D. Pluth. "Supramolecular bidentate phosphine ligand scaffolds from deconstructed Hamilton receptors". Chemical Communications 53, nr 3 (2017): 561–64. http://dx.doi.org/10.1039/c6cc09198a.
Pełny tekst źródłaMoreno-Alcántar, Guillermo, Cristian Díaz-Rosas, Alberto Fernández-Alarcón, Luis Turcio-García, Marcos Flores-Álamo, Tomás Rocha-Rinza i Hugo Torrens. "Fluorination Effects in XPhos Gold(I) Fluorothiolates". Inorganics 9, nr 2 (2.02.2021): 14. http://dx.doi.org/10.3390/inorganics9020014.
Pełny tekst źródłaPovolotskiy, A. V. "Kinetics of the photodecomposition of supramolecular alkynyl–phosphine complexes". Russian Journal of Physical Chemistry A 91, nr 10 (20.09.2017): 2052–54. http://dx.doi.org/10.1134/s0036024417100314.
Pełny tekst źródłaKnöfel, Nicolai D., Christoph Schoo, Tim P. Seifert i Peter W. Roesky. "A dimolybdenum paddlewheel as a building block for heteromultimetallic structures". Dalton Transactions 49, nr 5 (2020): 1513–21. http://dx.doi.org/10.1039/c9dt04167b.
Pełny tekst źródłaVasseur, Alexandre, Romain Membrat, Davide Palpacelli, Michel Giorgi, Didier Nuel, Laurent Giordano i Alexandre Martinez. "Synthesis of chiral supramolecular bisphosphinite palladacycles through hydrogen transfer-promoted self-assembly process". Chemical Communications 54, nr 72 (2018): 10132–35. http://dx.doi.org/10.1039/c8cc06283h.
Pełny tekst źródłaXu, Qiu, Fenbao Zhang, Michael C. Jennings i Richard J. Puddephatt. "New bis(phosphine-amide) ligands: Oxidation, coordination and supramolecular chemistry". Polyhedron 131 (lipiec 2017): 46–51. http://dx.doi.org/10.1016/j.poly.2017.04.028.
Pełny tekst źródłaKarasik, Andrey A., Elvira I. Musina, Igor D. Strelnik, Irina R. Dayanova, Julia G. Elistratova, Asiya R. Mustafina i Oleg G. Sinyashin. "Luminescent complexes on a scaffold of P2N2-ligands: design of materials for analytical and biomedical applications". Pure and Applied Chemistry 91, nr 5 (27.05.2019): 839–49. http://dx.doi.org/10.1515/pac-2018-0926.
Pełny tekst źródłaShankar, Bhaskaran, Palani Elumalai, Ramasamy Shanmugam, Virender Singh, Dhanraj T. Masram i 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, nr 18 (28.08.2013): 10217–19. http://dx.doi.org/10.1021/ic401257w.
Pełny tekst źródłaRozprawy doktorskie na temat "Supramolecular Phosphine"
Larkin, Scott A. "Synthesis and Supermolecular Chemistry of Biphenylthioatogold(I)Phosphine Complexes". Fogler Library, University of Maine, 2007. http://www.library.umaine.edu/theses/pdf/LarkinSA2007.pdf.
Pełny tekst źródłaZhu, Chongwei. "Advances in the coordination chemistry of nitroaromatic phosphines : synthesis and supramolecular chemistry of alkyl/aryl carbo-benzene derivatives". Thesis, Toulouse 3, 2017. http://www.theses.fr/2017TOU30281/document.
Pełny tekst źródłaThe manuscript is divided into six chapters and two independent parts, the first part being dedicated to the investigation of the effect of nitro substituents on aromatic phosphine ligands (L). A series of (N-phenyl-benzimidazol-1-yl) diphenylphosphines substituted with 1 to 3 nitro groups at different positions of the N-phenyl and benzimidazolyl cores, were synthesized, and compared with the non-nitrated parent and cationic N-methyl-benzimidazolium counterpart. In the corresponding trans-L2RhICl(CO) complexes, prepared in two steps and fully characterized, moderate but systematic variations of the C=O IR stretching frequency and 103Rh NMR chemical shift provide an empirical quantification of regio-specific effects of the nitro-substituents on the global donating character of the P-ligand. Dinuclear (µ-CO)(LRhCl)2 side-products were shown to give unique clathrate crystals with a high content (6.7:1) of dichloromethane solvate. The second part, gathering five chapters, concerns the study of new types of highly p-conjugated carbo-mers, primarily devised to palliate the limiting poor solubility of the aromatic C18 carbo-benzene core. The synthesis and characterization of reference hexaaryl-carbo-benzenes are revisited. An improved 12-step synthetic route to the long known hexaphenyl derivative and p-bis-3,5-di-tert-butylphenyl homologue is described. Both carbo-benzenes were fully characterized, in particular by X-ray diffraction analysis and electrochemistry. Their use in organic photovoltaic solar-cells was found to be hampered by their very low solubility preventing the formation of high quality thin films. The third chapter focusses on a series of p-dialkyl-tetraphenyl-carbo-benzenes with two aliphatic chains R = CnH2n+1, n = 2, 4, 8, 14, 20. The synthetic route based on nucleophilic addition of RMgBr to a key [6]pericyclynedione ultimately led to both the dialkyl- and reduced mono-alkyl-carbo-benzenes, the reduction process being found suppressed by using a RLi/CeCl3 reactant. A dramatic enhancement of solubility in chlorinated solvents was observed for n = 8. A direct p-p stacking of C18 rings, driven by aliphatic dispersions forces, could be evidenced for the first time in the X-ray crystal structure of the bis-tetradecyl derivative, giving experimental support to the existence of the a-graphityne 3D carbon allotrope (putative carbo-mer of graphite). The fourth chapter describes two trialkoxyarylethynyl-tetraphenyl-carbo-benzenes and the study of the mesogen properties of one of them. A columnar rectangular mesophase, evidenced at 115 oC by DSC, POM and PXRD analyses, opens prospects for a systematic study of related liquid crystals. The 3D lattice constants are consistent with 2D STM images of the carbo-mesogen deposited on HOPG. The fifth chapter reports on three skeletal carbo-mers of bis- and ter-phenyls, devised for their acquaintance with OPP or OPE molecular wires. A carbo-terphenyl was found to exhibit a very low first reduction potential (-0.39 V/SCE), unprecedented in the carbo-mer series. In the last chapter, new types of carbo-mers are exemplified: carbo-barrelenes and carbo-stilbenes. Their preparation relies on the addition of triyne dinucleophiles to either one or two equivalents of a [6]pericyclyne(di)one precursor. In the tricyclic series, two non-macroaromatic carbo-barrelenes and one partially reduced bis-butatrienic derivative, both containing two sp3-C bridgeheads, were found to be sufficiently stable to allow full characterization, including by crystallography. The cage-ability of a carbo-barrelene toward small molecules such as NH4+, albeit not clearly proven yet, was investigated both theoretically and experimentally. The carbo-stilbene product was evidenced as an unseparated mixture of two isomers. In the absence of crystal of suitable quality for crystallography, they were assigned to the cis and trans diastereoisomers on the basis of 1H NMR spectroscopy and DFT calculations
Tang, Hau-san. "Design and synthesis of metal phosphine complexes of palladium(II) and gold(I) with various receptor ligands for ion-controlled or photoresponsive host-guest chemistry". Click to view the E-thesis via HKUTO, 2006. http://sunzi.lib.hku.hk/hkuto/record/B37877422.
Pełny tekst źródłaTang, Hau-san, i 鄧巧珊. "Design and synthesis of metal phosphine complexes of palladium(II) andgold(I) with various receptor ligands for ion-controlled orphotoresponsive host-guest chemistry". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2006. http://hub.hku.hk/bib/B37877422.
Pełny tekst źródłaVitvarová, Tereza. "Synthesis and properties of supramolecular polymers". Thesis, Rennes 1, 2017. http://www.theses.fr/2017REN1S077.
Pełny tekst źródłaNew π-conjugated building blocks (unimers) for metallo-supramolecular polymers (MSPs), whose comprise: (i) substituted phosphole ring surrounded by two thiophene rings as the central block, (ii) 2,2':6',2''-terpyridine-4'-yl (tpy) end-groups as ion-selectors, and (iii) different linkers inserted between the central block and tpy end-groups, are described. Chemical and physical properties of those unimers were studied with attention on correlation between properties and structure of unimers. For example the unimer without linkers shows the UV/vis absorption maximum red shifted about 60 to 100 nm compared to bis(tpy)terthiophenes, which proves that replacing of the thiophene with phosphole unit significantly enhances the delocalization of electrons within the unimer molecule and significant area of absorption spectra can be covered. Introduction of linkers (ethynediyl, ethynediyl-thiophene-2,5-diyl, ethynediyl-1,4-phenylene) has a minor effect on the bandgap energy. All prepared unimers underwent self-assembling process with various metal ions (Co2+, Cu2+, Fe2+, Ni2+ and Zn2+) resulting into metallo-supramolecular polymers. Three stages of the assembly of unimers into related MSPs were observed and characterized by absorption, fluorescence spectroscopy and size exclusion chromatography: 1) formation of dimer species: U-M2+-U (U stands for unimer); 2) prolongation of polymer chain to reach the maximum length at equimolar ratio of unimer and metal ions; 3) end-capping of polymer chains and their partial decomposition at stoichiometric excess of ion couplers. Optoelectronic properties of newly formed metallo-supramolecular polymers were investigated and choice of the metal ions was shown to be of crucial importance
V rámci této disertační práce byly připraveny stavební bloky (nazývající se unimery) pro tvorbu konjugovaných metalo-supramolekulárních polymerů (MSPs), které ve své struktuře obsahují: (i) substituovaný fosfolový kruh obklopený dvěma thiofenovými cykly jako centrální blok, (ii) 2,2':6',2''-terpyridin-4'-yl (tpy) jako koncovou skupinu pro navázání iontů, a (iii) různé spojky mezi uvedeným centrálním blokem a tpy skupinou. Chemické a fyzikální vlastnosti těchto unimerů byly prostudovány s důrazem na korelaci mezi vlastnostmi a strukturou unimeru. Například unimer bez přídavných spojek vykazuje posun UV/vis absorpčního maxima do červené oblasti o 60 až 100 nm v porovnání s bis(tpy)terthiofenem, což značí, že nahrazením thiofenu fosfolem se značně zvyšuje delokalizace elektronů v molekule unimeru a může být pokryta značná část spektra. Začlenění spojek (ethynediyl, ethynediyl-thiofen-2,5-diyl, ethynediyl-1,4-fenylen) do struktury unimeru má jen malý vliv na šířku zakázaného pásu, a tedy pozici absorpčního maxima. Všechny připravené unimery byly podrobeny procesu samo-seskupování s různými kovovými ionty (Co2+, Cu2+, Fe2+, Ni2+ a Zn2+) za vzniku organokovových polymerů. Tři stadia provázející proces samo-seskupování byla pozorována pomocí absorpční a fluorescenční spektroskopie a gelové permeační chromatografie (SEC): 1) tvorba dimerů U-M2+-U (U = unimer), 2) prodlužování polymerních řetězců a dosažení maximální délky při ekvimolárním poměru unimeru a kovových iontů, 3) vazba kovových iontů na koncové terpyridinové skupiny a rozklad polymerního řetězce na kratší při stechiometrickém přebytku kovových iontů. Optické vlastnosti nově připravených organokovových polymerů byly prozkoumány a ukázalo se, že velmi závisí na vybraném kovovém iontu
Membrat, Romain. "Réactions de transfert d'hydrogène catalysées par les complexes de palladium et de platine associés aux ligands phosphinito-acide phosphineux". Electronic Thesis or Diss., Aix-Marseille, 2019. http://theses.univ-amu.fr.lama.univ-amu.fr/190719_MEMBRAT_386crd806cefe861cbrkq829aijwx_TH.pdf.
Pełny tekst źródłaThe notion of metal catalyzed hydrogen transfer presented in this manuscript relies in generating an active metal hydride from an hydrogen donor (alcohol) and transferring it toward an unsaturated product with a view to molecular complexity increasing. A broad variety of product could be targeted with this concept and its variants. The phosphinito-phosphinous acid ligand which is negatively charged ligand is capable to generate strikingly active palladium and platinum hydride. In the first part of this work, a new anaerobic alcohol oxidation system with remarkable properties of chemioselectivity has been developed. Complementary studies have allowed a good understanding of the hydride transfer mechanism. Moreover it highlighted the interesting ability of the PAP ligand to self adapt its own electronic properties specifically to each steps of the catalytic cycle. In a second stage, a cascade process oxidation - double C(sp3)-N bond activation has been presented. It has been shown that M/PAP complexes could act as a weak Lewis acid. Finally, an enantioselective version of hydride transfer processes has been studied through enantioselective isomerization of allylic alcohols. The effect of the combination of a P - stereogenic ligand and new secondary chirality inductors (central chirality borne by the X-type ligand and inherent chirality borne by a supramolecular C1 symmetric moiety) has been evaluated
Sanchez-Ballester, Noelia M. "Supramolecular studies with functionalised group 15 ligands". Thesis, Loughborough University, 2010. https://dspace.lboro.ac.uk/2134/6062.
Pełny tekst źródłaWoinaroschy, Kristina Michaela. "Cyclen transition metal complexes as biomimetic catalysts, phosphate anion sensors and building-blocks in supramolecular assemblies". kostenfrei, 2007. http://www.opus-bayern.de/uni-regensburg/volltexte/2009/890/.
Pełny tekst źródłaShen, Wenting. "Supramolecular assembly of π-systems using bimetallic CuI-clip bearing organophosporous ligands : control of the sold state organization in crystals and on surfaces". Rennes 1, 2010. http://www.theses.fr/2010REN1S078.
Pełny tekst źródłaThe versatility of (CuI)2-clip bearing organophosphorous ligands in order to control the solid state organization of a variety of π-stacked supramolecular assemblies with cyano-capped π-systems has been investigated in this work. The Chapter I presents the results we had in order to build various π-stacked supramolecular analogues of [2,2]paracyclophanes based on fully π-conjugated linkers having different nature and topology. In the Chapter II and Chapter III, we present investigations we made focused on structural variation of the π-systems. We introduce “flexible” aliphatic chains in the core of the π-conjugated linkers to investigate the role of the π-systems to obtain long range π-stacked organization (Chapter II) and use monotopic π-conjugated systems (Chapter III). The last chapter presents the preliminary AFM studies of organization on surfaces of some of the π-stacked assemblies described in this work
Elsayed, Moussa Mehdi. "Supramolecular assemblies with organophosphorated based derivatives for potential applications in optoelectronics". Thesis, Rennes 1, 2013. http://www.theses.fr/2013REN1S135.
Pełny tekst źródłaIn this work, we have prepared organophosphorated ligands based copper(I) or gold(I) dimers that act as efficient molecular clips thanks to metallophilic interactions. Firstly, a bimetallic copper(I) complex bearing bis(2-pyridyl)phosphole ligands was used as a molecular clip to organize monotopic cyano-capped pi-systems carrying various pi-conjugated fragments into self-assembled pi-stacked dimers. These dimers organized in the solid state within infinite columnar pi-stacks. Secondly, a bimetallic gold(I) complex bearing a biphosphole ligand was used as a molecular clip to organize ethynyl-capped [6]helicene moieties into self-assembled dimers. These dimers showed an enhancement of the chiroptical properties as compared to the free ethynyl[6]helicene ligand. Thirdly, a bimetallic copper(I) complex bearing 1,1-bis(diphenylphosphino)methane (dppm) ligands has revealed a powerful molecular clip to design self-assembled supramolecular architectures by reaction with different cyanometallates. These supramolecular derivatives have different topologies and are emissive in the visible spectrum upon UV excitation and in some cases they showed intriguing thermochromic luminescence properties
Części książek na temat "Supramolecular Phosphine"
Crassous, J., C. Lescop i R. Réau. "Coordination-Driven Supramolecular Assembly of Phosphole-Based π-Conjugated Ligands". W Phosphorus Compounds, 343–73. Dordrecht: Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-90-481-3817-3_11.
Pełny tekst źródłaLescop, Christophe, i Muriel Hissler. "Coordination Chemistry of Phosphole Ligands Substituted with Pyridyl Moieties: From Catalysis to Nonlinear Optics and Supramolecular Assemblies". W Tomorrow's Chemistry Today, 295–319. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2010. http://dx.doi.org/10.1002/9783527628902.ch12.
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