Search results for "Disiloxane"

showing 10 items of 21 documents

CCDC 1861473: Experimental Crystal Structure Determination

2018

Related Article: Chris Gendy, Akseli Mansikkamäki, Juuso Valjus, Joshua Heidebrecht, Paul Chuk-Yan Hui, Guy M. Bernard, Heikki M. Tuononen, Roderick E. Wasylishen, Vladimir K. Michaelis, Roland Roesler|2019|Angew.Chem.,Int.Ed.|58|154|doi:10.1002/anie.201809889

(11'-[(1133-tetramethyldisiloxane-13-diyl)bis(methylene)]bis{3-[26-bis(propan-2-yl)phenyl]-imidazol-2-ylidene})-dichloro-germanium-nickel(0) toluene unknown solvateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates

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Atmospheric pressure plasma polymerisation of metalloporphyrins containing mesoporous membranes for gas sensing applications

2013

Abstract Metalloporphyrins are embedded in an organosilicon matrix by an easily up-scalable atmospheric pressure dielectric barrier discharge method. The integrity of the metalloporphyrins, followed by UV–visible spectroscopy, is successfully preserved and their aggregation prevented. The single molecule properties, rather than the bulk ones, are thus enhanced. Exposure to triethylamine, which reaches the metalloporphyrins through the pores of the organosilicon membrane, led to a shift in the absorption spectrum and confirms the gas sensing potential of such coatings.

HexamethyldisiloxaneMaterials scienceAbsorption spectroscopyAtmospheric pressureAtmospheric-pressure plasmaSurfaces and InterfacesGeneral ChemistryDielectric barrier dischargeCondensed Matter PhysicsSurfaces Coatings and Filmschemistry.chemical_compoundMembraneChemical engineeringchemistryMaterials ChemistryOrganic chemistryMesoporous materialOrganosiliconSurface and Coatings Technology

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Carboranyl Substituted Siloxanes and Octasilsesquioxanes: Synthesis, Characterization, and Reactivity

2008

Carboranyl-containing disiloxane, cyclic-siloxane and cage-like silsesquioxane have been prepared in high yields. Two routes are compared for their preparation, a classical hydrolytic process based on hydrolysis and condensation of the freshly prepared carboranylalkylchlorosilane and ethoxysilane precursors and a nonhydrolytic route based on the specific reactivity of chorosilane toward DMSO. Based on the typical reactivity of the carboranyl group toward nucleophiles, dianionic disiloxanes and octaanionic silsesquioxanes were obtained without modification of the siloxane bond. Products are fully characterized by FTIR, NMR and MALDI-TOF methods.

Polymers and Plastics010405 organic chemistryOrganic ChemistryChemical modification[CHIM.MATE]Chemical Sciences/Material chemistryDisiloxane010402 general chemistry01 natural sciencesSilsesquioxane0104 chemical sciencesInorganic Chemistrychemistry.chemical_compound[CHIM.POLY]Chemical Sciences/PolymersNucleophilechemistrySiloxanePolymer chemistryMaterials ChemistryCarboraneOrganic chemistryMolecule[CHIM.COOR]Chemical Sciences/Coordination chemistryReactivity (chemistry)ComputingMilieux_MISCELLANEOUSMacromolecules

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Reinvestigation of the Pd-catalysed bis(silylation) of alkynes with 1,1,2,2-tetramethyl-1,2-bis(phenylthiomethyl)disilane: Unexpected formation of th…

2013

International audience; The bis(silylated) alkenes Z-(PhSCH2)Me2SiC(H)=C(Fc)SiMe2(CH2SPh) (2) and Z-(PhSCH2)Me2SiC(H)=C(bipheny)SiMe2(CH2SPh) (3) have been prepared by Pd-catalysed double silylation of ethynylferrocene and 4-ethynyl-1,1'-biphenyl in the presence of 1,1,2,2-tetramethyl-1,2-bis(phenylthiomethyl)disilane (1). A reinvestigation on the interaction of 1 with [PdCl2(PhCN)2] in technical-grade CH2Cl2 as solvent revealed competition between reduction to elemental palladium (due to oxidative addition of the Si-Si bond across Pd(II) and subsequent reductive elimination) and formation of an unusual eight-membered chelate complex cis-[PdCl2{(PhSCH2SiMe2)2O}] (4), which is fluxional in s…

SilylationStereochemistryEthynylferrocene[CHIM.INOR]Chemical Sciences/Inorganic chemistry010402 general chemistry01 natural sciencesBiochemistryMedicinal chemistryDFTReductive eliminationInorganic Chemistrychemistry.chemical_compound[ CHIM.CRIS ] Chemical Sciences/Cristallography[ CHIM.ORGA ] Chemical Sciences/Organic chemistryDisilaneMaterials Chemistry[CHIM.CRIS]Chemical Sciences/Cristallography[CHIM.COOR]Chemical Sciences/Coordination chemistryPhysical and Theoretical ChemistryConformational isomerismComputingMilieux_MISCELLANEOUSThioether complexesSiloxane010405 organic chemistryLigand[CHIM.ORGA]Chemical Sciences/Organic chemistryOrganic Chemistry[ CHIM.COOR ] Chemical Sciences/Coordination chemistry[ CHIM.INOR ] Chemical Sciences/Inorganic chemistryDisiloxaneOxidative addition0104 chemical scienceschemistrySiloxaneDisilanePalladium

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CCDC 1861472: Experimental Crystal Structure Determination

2018

Space GroupCrystallographyCrystal System(11'-[(1133-tetramethyldisiloxane-13-diyl)bis(methylene)]bis{3-[26-bis(propan-2-yl)phenyl]-imidazol-2-ylidene})-(cycloocta-15-diene)-nickel(0)Crystal StructureCell ParametersExperimental 3D Coordinates

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CCDC 1515780: Experimental Crystal Structure Determination

2017

Related Article: Sergiu Shova, Angelica Vlad, Maria Cazacu, J. Krzystek, Lukas Bucinsky, Martin Breza, Denisa Darvasiová, Peter Rapta, Joan Cano, Joshua Telser, Vladimir B. Arion|2017|Dalton Trans.|46|11817|doi:10.1039/C7DT01809F

Space GroupCrystallographyCrystal System(22'-{(1133-tetramethyldisiloxane-13-diyl)bis[(propane-31-diyl)(azanylylidene)methylylidene]}bis(46-di-t-butylphenolato))-(isothiocyanato)-manganese(iii) hydrateCrystal StructureCell ParametersExperimental 3D Coordinates

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CCDC 1875359: Experimental Crystal Structure Determination

2019

Related Article: Sergiu Shova, Angelica Vlad, Maria Cazacu, J. Krzystek, Andrew Ozarowski, Michal Malček, Lukas Bucinsky, Peter Rapta, Joan Cano, Joshua Telser, Vladimir B. Arion|2019|Dalton Trans.|48|5909|doi:10.1039/C8DT04596H

Space GroupCrystallographyCrystal System(mu-but-2-enedioato)-bis(22'-{(1133-tetramethyldisiloxane-13-diyl)bis[(propane-31-diyl)azanylidenemethanylidene]}bis(46-di-t-butylphenolato))-di-manganese(iii) dichloromethane solvateCrystal StructureCell ParametersExperimental 3D Coordinates

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CCDC 2115738: Experimental Crystal Structure Determination

2022

Related Article: Chris Gendy, Juuso Valjus, Roland Roesler, Heikki M. Tuononen|2022|Angew.Chem.,Int.Ed.|61|e202115692|doi:10.1002/anie.202115692

Space GroupCrystallographyCrystal SystemCrystal Structure(mu-diphosphene-12-diyl)-bis(11'-[(1133-tetramethyldisiloxane-13-diyl)bis(methylene)]bis{3-[26-bis(propan-2-yl)phenyl]imidazol-2-ylidene})-di-nickel unknown solvateCell ParametersExperimental 3D Coordinates

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CCDC 2115737: Experimental Crystal Structure Determination

2022

Related Article: Chris Gendy, Juuso Valjus, Roland Roesler, Heikki M. Tuononen|2022|Angew.Chem.,Int.Ed.|61|e202115692|doi:10.1002/anie.202115692

Space GroupCrystallographyCrystal SystemCrystal Structure(mu-tetraphosphete)-bis(11'-[(1133-tetramethyldisiloxane-13-diyl)bis(methylene)]bis{3-[26-bis(propan-2-yl)phenyl]imidazol-2-ylidene})-di-nickel(0) unknown solvateCell ParametersExperimental 3D Coordinates

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CCDC 1425778: Experimental Crystal Structure Determination

2015

Related Article: Arántzazu González-Campo, Emilio José Juárez-Pérez, Clara Viñas, Bruno Boury, Reijo Sillanpää, Raikko Kivekäs and Rosario Núñez|2008|Macromolecules|41|8458|doi:10.1021/ma801483c

Space GroupCrystallographyCrystal SystemCrystal Structure1133-tetramethyl-13-bis(3-(2-methyl-12-dicarba-closo-dodecaborane(10)-1-yl)propyl)disiloxaneCell ParametersExperimental 3D Coordinates

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