NEUTRAL PHOSPHINE COMPLEXES OF ANTIMONY(III) AND BISMUTH(III) HALIDES

被引：44

作者：

CLEGG, W ^{[1
]}

ELSEGOOD, MRJ ^{[1
]}

GRAHAM, V ^{[1
]}

NORMAN, NC ^{[1
]}

PICKETT, NL ^{[1
]}

TAVAKKOLI, K ^{[1
]}

机构：

[1] UNIV DURHAM,DEPT CHEM,SCI LABS,DURHAM DH1 3LE,ENGLAND

来源：

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS | 1994年 / 12期

关键词：

D O I：

10.1039/dt9940001743

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The reaction between BiBr3 and PEt3 has afforded crystals of the centrosymmetric, tetrameric complex [Bi4Br12(PEt3)4] in which each bismuth centre is octahedrally co-ordinated and bonded to one phosphine ligand. An alternative structural arrangement for a monophosphine complex has been found in a PMe3 complex of SbI3, [{SbI3(PMe3)}x], which is polymeric although with mu-1 bridges of two types between the antimony centres such that a description as a polymer of dimers is appropriate. In the bis(phosphine) complex of BiBr3, [Bi2Br6(PMe3)4], a centrosymmetric, edge-shared, bioctahedral structure is observed with cis phosphines occupying one axial and one equatorial site per bismuth centre. Similar structures have been observed for the dmpe complexes [E2Br6(dmpe)2] [E = Sb or Bi; dmpe = 1,2-bis(dimethylphosphino)ethane] and the factors affecting which structural isomer is adopted, in comparison with a range of transition metal complexes, have been discussed. An isomeric tetrameric form of [SbBr3(dmpe)] has also been isolated.

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页码：1743 / 1751

页数：9

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