A PHOSPHINE COMPLEX OF BISMUTH(III) - X-RAY CRYSTAL-STRUCTURE OF [PME3H][BI2BR7(PME3)2]

被引:50
作者
CLEGG, W [1 ]
ERRINGTON, RJ [1 ]
FISHER, GA [1 ]
GREEN, ME [1 ]
HOCKLESS, DCR [1 ]
NORMAN, NC [1 ]
机构
[1] UNIV NEWCASTLE UPON TYNE,DEPT CHEM,NEWCASTLE TYNE NE1 7RU,TYNE & WEAR,ENGLAND
关键词
BISMUTH COMPLEXES; PHOSPHINE LIGANDS;
D O I
10.1002/cber.19911241115
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The reaction between BiBr3 and one equivalent of PMe3 in THF affords, after recrystallisation from MeCN/Et2O, yellow crystals of [PMe3H][Bi2Br7(PMe3)2] . 2 (MeCN) (1), which has been characterised by X-ray crystallography. Compound 1 is the first reported bismuth-phosphine complex and comprises a polymeric anion, the monomeric unit of which contains a planar Bi2Br6 core, each bismuth being further bonded to a PMe3 ligand and an additional bromide such that the bismuth resides in an octahedral coordination environment. The latter bromides form linear bridges between monomeric units; the phosphines are trans with respect to the Bi2 unit, with a Bi-P distance of 2.762(3) angstrom. The reaction between BiI3 and PEt3 in THF affords, after recrystallisation from MeCN/Et2O, orange crystals of [PEt4]4[Bi6I22] (3) which has also been characterised by X-ray crystallography.
引用
收藏
页码:2457 / 2459
页数:3
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