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Titolo:
Salts of the bis(catecholato)borate anion with rhodium- and iridium-phosphine complex cations
Autore:
Clegg, W; Elsegood, MRJ; Scott, AJ; Marder, TB; Dai, CY; Norman, NC; Pickett, NL; Robins, EG;
Indirizzi:
Univar,wcastle Upon Tyne, Dept Chem, Newcastle Upon Tyne NE1 7RU, Tyne & We Univ Newcastle Upon Tyne Newcastle Upon Tyne Tyne & Wear England NE1 7RU Univ Durham, Dept Chem, Durham DH1 3LE, England Univ Durham Durham England DH1 3LE m, Dept Chem, Durham DH1 3LE, England Univ Waterloo, Dept Chem, Waterloo, ON N2L 3G1, Canada Univ Waterloo Waterloo ON Canada N2L 3G1 em, Waterloo, ON N2L 3G1, Canada Univ Bristol, Sch Chem, Bristol BS8 1TS, Avon, England Univ Bristol Bristol Avon England BS8 1TS Bristol BS8 1TS, Avon, England
Titolo Testata:
ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS
, volume: 55, anno: 1999,
parte:, 5
pagine: 733 - 739
SICI:
0108-2701(19990515)55:<733:SOTBAW>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
METAL-CATALYZED HYDROBORATIONS; CAT = 1,2-O2C6H4; MOLECULAR-STRUCTURE; CARBON-DIOXIDE; CRYSTAL; TETRAFLUOROBORATE; CATECHOLBORANE; CHLORIDE; ALKENES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
31
Recensione:
Indirizzi per estratti:
Indirizzo: Clegg, W UnivRU,wcastle Upon Tyne, Dept Chem, Bedson Bldg, Newcastle Upon Tyne NE1 7 Univ Newcastle Upon Tyne Bedson Bldg Newcastle Upon Tyne Tyne & Wear England NE1 7RU
Citazione:
W. Clegg et al., "Salts of the bis(catecholato)borate anion with rhodium- and iridium-phosphine complex cations", ACT CRYST C, 55, 1999, pp. 733-739

Abstract

In a series of five salts with rhodium- or iridium-phosphine complex cations {cis-chlorohydridotetrakis(triethylphosphine) iridium(III) bis(pyrocatecholato O,O')borate, [IrClH(C6H15P)(4)](C12H8BO4), (1); transchlorobis [ethylenebis(diphenylphosphine)]hydridorhodium(III) bis(pyrocatecholato-O,O')borate dichloromethane solvate, [RhClH(C26H24P2)(2)](C12H8BO4) . CH2Cl2, (2); trans-chlorobis[ethylenebis(dicyclohexylphos phine)]hydridorhodium(III) bis(pyrocatecholato-O,O')borate tetrakis(dichloromethane) solvate, [RhCIH(C26H48P2)(2)](C12H8BO4) . CH2Cl2, (3); tetrakis(trimethylphosphine)rhodium(I) bis(pyrocatecholato -O,O')borate, [Rh(C3H9P)(4)](C12H8BO4), (4); and cis-dihydridotetrakis(trimethylphosphine)rhodium(III) bis(pyrocatecholato O,O')borate, [RhH2(C3H9P)(4)](C12H8BO4), (5)}, the bis(catecholato)borate anion hasapproximate D-2d ((4) over bar 2m) symmetry, with the central spiro-B atomdistorted from regular tetrahedral coordination geometry by reduction of the two intra-ring O-B-O bond angles. The two chelate rings show small deviations from planarity by folding about the O...O axis. The hydride and chloro ligands in the cation of compound (1), which has four monodentate phosphine ligands, are cis to each other, but in compounds (2) and (3), each with two chelating diphosphine ligands, they are mutually trans. The cation in compound (4) has only four phosphine ligands, which are arranged in a tetragonally distorted square-planar arrangement to minimise steric crowding. Itsreaction product with molecular dihydrogen, compound (5), has a cis arrangement of the two hydride ligands in a distorted octahedral cation. The strong trans influence of the hydride ligands is reflected in lengthened bonds to the opposite ligands in each case.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/09/20 alle ore 17:26:19