X-ray crystal structures of [Bi(C2H2N2S3)(SCN)(3)] (1) and Cs2K[Bi(SCN)(6)] (2). An unusual pentagonal-pyramidal coordination of Bi-III in (1)

被引:5
|
作者
Sieron, L [1 ]
BukowskaStrzyzewska, M [1 ]
Cyganski, A [1 ]
Turek, A [1 ]
机构
[1] TECH UNIV LODZ,INST GEN & ECOL CHEM,PL-90924 LODZ,POLAND
关键词
Bi-III stereochemistry; thiocyanato Bi-III complexes; unusual pentagonal-pyramidal Bi-III coordination; isoperthiocyanic acid; X-ray crystal structures;
D O I
10.1016/0277-5387(96)00148-9
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The new complex of Bi(SCN)(3) with the isoperthiocyanic acid: [Bi(C2H2N2S3)(SCN)(3)] (1) has been obtained during the attempted recrystallization of Dy[Bi(SCN)(6)]. 6H(2)O from HClO4. Compound (1) and CsK[Bi(SCN)(6)](2) have been investigated by X-ray crystallography. The unusual shape of deformed pentagonal pyramidal coordination of Bi-III in (1) and typical octahedral coordination in (2) have been observed. The analysis of Bi--S and Bi--N bond lengths in home and hetero-ligand thiocyanato Bi-III complexes of different coordination numbers is made on the basis of the bond's valences, computed from our literature and experimental data. The role of the Bi-III lone electron pair on the shape of Bi-III coordination polyhedra is considered. Copyright (C) 1996 Elsevier Science Ltd
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页码:3923 / 3931
页数:9
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