Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels. 51805-45-9, Name is 3,3′,3”-Phosphinetriyltripropanoic acid hydrochloride, molecular formula is C9H16ClO6P. In an article, author is Partl, Gabriel Julian,once mentioned of 51805-45-9, Product Details of 51805-45-9.
Crystal structures of two PCN pincer iridium complexes and one PCP pincer carbodiphosphorane iridium intermediate: substitution of one phosphine moiety of a carbodiphosphorane by an organic azide
The structure of [Ir{(4-Cl-C6H4N3)C(dppm)-kappa P-3,C,N1(dppm-kappa P-2,P’)]Cl center dot 1.5CH(2)Cl(2)-0.5C(7)H(8) (C57H48Cl2IrN3P4 center dot 1.5CH(2)Cl(2 center dot)0.5C(7)H(8)) (2), dppm = bis(di-phenylphosphino)methane {systematic name: [7-(4-chlorophenyl)-1,1,3,3-tetraphenyl-5,6,7-triaza-kappa N-7-1,3 lambda(4)-diphospha-kappa P-1-hepta-4,6-dien-4-yl][methylenebis (diphenylphosphine)-kappa P-2,P’]iridium (I) chloride-dichloromethane-toluene (2/3/1)}}, resulting from the reaction of [IrClH{C(dppm)(2)-kappa P-3,C,P)(MeCN)]Cl (1a) with 1-azido-4-chlorobenzene, shows a monocationic five-coordinate Ir-1 complex with a distorted trigonal-bipyramidal geometry. In 2, the iridium centre is coordinated by the neutral triazeneylidenephosphorane (4-Cl-C6H4N3)-C(dppm) acting as a PCN pincer ligand, and a chelating dppm unit. The structure of the coordination compound [IrCl(CN)H(C(dppm)(2)-kappa P-3,C,P)]center dot CH3CN, (C52H45ClIrNP4 center dot CH3CN) (1b) [systematic name: chloridocyanidohydrido(1,1,3,3,5,5,7,7-octaphenyl-1,3 lambda(5),5 lambda(4),7-tetraphospha-kappa P-2(1),P(7)hept-3-en-4-yl)iridium(III) acetonitrile monosolvate], prepared from 1a and KCN, reveals an octahedral Ir-III central atom with a meridional PCP pincer carbodiphosphorane (CDP) ligand; the chloride ligand is located trans to the central carbon of the CDP functionality while the hydrido and cyanido ligands are situated trans to each other. The chiral coordination compound [Ir(CN)((4-Cl-C6H4N3)CH(CH(P(Ph)(2))(2)-kappa P-3,C,N)(dppm-kappa P-2,P’)]center dot 2CH(3)OH, (C58H48ClIr-N4P4 center dot 2CH(3)OH) (3) (systematic name: {4-[3-(4-chlorophenyl)triazenido-kappa N-3]-1,1,3,3-tetraphenyl-1,3 lambda(5)-diphospha-kappa P-1-but-2-en-4-yl}cyanido[methylenebis(diphenylphosphine)-kappa P-2,P’]iridium(III) methanol disolvate), formed via prolonged reaction of 1-azido-4-chlorobenzene with lb, features a sixcoordinate Ir-III central atom. The iridium centre is coordinated by the dianionic facial PCN pincer ligand [(4-Cl-C6H4N3)CH(CH(P(Ph-2)(2))(2))], a cyanido ligand trans to the central carbon of the PCN pincer ligand and a chelating dppm unit. Complex 2 exhibits a 2:1 positional disorder of the Cl- anion. The CH2Cl2 and C7H8 solvent molecules show occupational disorder, with the toluene molecule exhibiting additional 1:1 positional disorder with some nearly overlying carbon atoms.
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Reference:
Phosphine ligand,
,Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate