Search results for "Copper"

showing 10 items of 3029 documents

CCDC 723744: Experimental Crystal Structure Determination

2010

Related Article: A.Gonzalez-Alvarez, I.Alfonso, J.Cano, P.Diaz, V.Gotor, V.Gotor-Fernandez, E.Garcia-Espana, S.Garcia-Granda, H.R.Jimenez, F.Lloret|2009|Angew.Chem.,Int.Ed.|48|6055|doi:10.1002/anie.200901888

(mu~3~-359111517-Hexa-aza-1713(26)-tripyridina-41016(12)-tricyclohexanacyclooctadecaphane)-bis(mu~3~-hydroxo)-tri-copper(ii) dichloride diperchlorate pentahydrateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates

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CCDC 883708: Experimental Crystal Structure Determination

2013

Related Article: Julia R. Shakirova, Elena V. Grachova, Alexei S. Melnikov, Vladislav V. Gurzhiy, Sergey P. Tunik, Matti Haukka, Tapani A. Pakkanen, and Igor O. Koshevoy|2013|Organometallics|32|4061|doi:10.1021/om301100v

(mu~3~-tris(Diphenylphosphino)methane)-bis(mu~2~-eta^2^-3-hydroxy-33-diphenylprop-1-yn-1-yl)-bromo-(3-hydroxy-33-diphenylprop-1-yn-1-yl)-copper-tri-gold acetone solvateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates

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CCDC 955946: Experimental Crystal Structure Determination

2013

(mu~3~-tris(Diphenylphosphino)methane)-bis(mu~2~-eta^2^-3-hydroxy-33-diphenylprop-1-yn-1-yl)-chloro-(3-hydroxy-33-diphenylprop-1-yn-1-yl)-copper-tri-gold acetone solvateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates

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CCDC 955945: Experimental Crystal Structure Determination

2013

(mu~3~-tris(Diphenylphosphino)methane)-tris(mu~2~-eta^2^-cyclohexylethynyl)-copper-tri-gold hexafluorophosphate dichloromethane solvateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates

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CCDC 711358: Experimental Crystal Structure Determination

2010

Related Article: E.Pardo, D.Cangussu, R.Lescouezec, Y.Journaux, J.Pasan, F.S.Delgado, C.Ruiz-Perez, R.Ruiz-Garcia, J.Cano, M.Julve, F.Lloret|2009|Inorg.Chem.|48|4661|doi:10.1021/ic900055d

(mu~4~-NN'-(14-Phenylene)-bis(oxamato))-tetrakis(bis(3-aminopropyl)amine)-tetra-copper(ii) tetraperchlorate dihydrateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates

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CCDC 927862: Experimental Crystal Structure Determination

2013

Related Article: Walter Cañon-Mancisidor, Carlos J. Gómez-García, Guillermo Mínguez Espallargas, Andres Vega, Evgenia Spodine, Diego Venegas-Yazigi, Eugenio Coronado|2014|Chemical Science|5|324|doi:10.1039/C3SC52628C

(mu~6~-Fluoro)-bis(mu~3~-methoxo)-hexakis(mu~2~-35-dimethylpyrazolato)-(mu~2~-hydroxo)-bis(mu~2~-methoxo)-hexa-copperSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates

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ABSOLUTE THERMOELECTRIC POWER OF Pb–Sn ALLOYS

2011

International audience; In this work, absolute thermoelectric power (ATP) of Pb, Sn, Pb-20 wt.% Sn, Pb-40 wt.% Sn, Pb-60 wt.% Sn, Pb-80 wt.% Sn are measured. Measurements are performed in a temperature gradient furnace from 20 degrees C to 500 degrees C, for both solid and liquid states. Temperatures are measured with T-type copper-constantan thermocouples, while voltage signal between copper electrodes of those thermocouples is recorded in order to calculate ATP of the sample metal.

010302 applied physicsMaterials scienceAnalytical chemistryStatistical and Nonlinear Physics[CHIM.MATE]Chemical Sciences/Material chemistry02 engineering and technology021001 nanoscience & nanotechnologyCondensed Matter Physics7. Clean energy01 natural sciencesMetalCopper electrodeTemperature gradientThermocouplevisual_artSeebeck coefficient0103 physical sciencesvisual_art.visual_art_medium0210 nano-technologyVoltageModern Physics Letters B

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First copper(I) ferrocenyltetraphosphine complexes: possible involvement in Sonogashira cross-coupling reaction ?

2008

Preparation and characterization of the first examples of copper(I) ferrocenylpolyphosphine complexes are reported. The molecular structure of complex {P,P′,P′′-[1,1′,2,2′-tetrakis(diphenylphosphino)-4,4′-di-tert-butylferrocene]iodocopper(I)} (1) was solved by X-ray diffraction studies, and its fluxional behavior in solution was investigated by VT-31P NMR; both revealed a net triligated coordination preference of the ferrocenyl tetraphosphine Fc(P)4tBu with copper. The tetradentate ligand is an active auxiliary in Sonogashira alkynylation; therefore the general question of copper as a competitive coordination partner in the Pd/Cu-catalyzed Sonogashira reaction was raised and discussed. Elec…

010405 organic chemistryArylOrganic Chemistry[ CHIM.COOR ] Chemical Sciences/Coordination chemistrySonogashira couplingchemistry.chemical_element010402 general chemistry01 natural sciencesMedicinal chemistryCopperCoupling reaction0104 chemical sciencesCatalysisInorganic Chemistrychemistry.chemical_compoundchemistryPhenylacetyleneMolecule[CHIM.COOR]Chemical Sciences/Coordination chemistryPhysical and Theoretical ChemistryComputingMilieux_MISCELLANEOUSPalladium

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Photochemistry and Redox Chemistry of an Unsymmetrical Bimetallic Copper(I) Complex

2016

The bimetallic copper(I) complex Cu2L2 (cis-1) is formed with high diasteroselectivity from [Cu(NCCH3)4][BF4] and HL (4-tert-butyl phenyl(pyrrolato-2-yl-methylene)amine) in a kinetically controlled reaction. cis-1 features a rather short Cu···Cu distance of 2.4756(6) A and is weakly emissive at room temperature in solution. Oxidatively triggered disproportionation of cis-1 yields elemental copper and the mononuclear copper(II) complex CuL2 (trans-2). One-electron reduction of trans-2 gives cuprate [2]– with a bent bis(pyrrolato) coordinated copper(I) entity. The imine donor atoms of [2]– can insert an additional copper(I) ion giving exclusively the bimetallic complex cis-1 closing the oxida…

010405 organic chemistryChemistryIminechemistry.chemical_elementDisproportionation010402 general chemistryPhotochemistry01 natural sciencesRedoxCopper0104 chemical sciencesIonInorganic Chemistrychemistry.chemical_compoundAmine gas treatingCupratePhysical and Theoretical ChemistryBimetallic stripInorganic Chemistry

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Synthesis of copper(II) and gold(III) bis(NHC)-pincer complexes

2016

Abstract CuII and AuIII chlorido complexes bearing the bis(NHC) carbazolide pincer ligand (bimca) were synthesized by transmetallation from the respective lithium complex [Li(bimca)] (NHC=N-heterocyclic carbene). In the case of copper, two different molecular structures were obtained depending on the copper source. With Cu(II) chloride the paramagnetic mononuclear [Cu(bimca)Cl] complex is formed and has been characterized by EPR spectroscopy and X-ray structure analysis, while copper(I) chloride leads under oxidation to a dinuclear structure in which two cationic [CuII(bimca)] moieties are bridged by one chlorido ligand. The positive charge is compensated by the [CuCl2]− counter ion, as pro…

010405 organic chemistryChemistryLigandCationic polymerizationchemistry.chemical_elementGeneral Chemistry010402 general chemistry01 natural sciencesCopperMedicinal chemistry0104 chemical sciencesPincer movementlaw.inventionchemistry.chemical_compoundTransmetalationlawElectron paramagnetic resonancePincer ligandCarbeneZeitschrift für Naturforschung B

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