[Bis(1,3-dithiole-2-thione-4,5-dithiolato)diarylantimonate(1-)], [Ar2Sb(dmit)2](-), complexes. Crystal structures of [NEt4][Ar2Sb(dmit)(2)] (Ar=Ph or p-tolyl)

被引:10
|
作者
Howie, RA
Low, JN
Spencer, GM
Wardell, JL
机构
[1] UNIV ABERDEEN,DEPT CHEM,OLD ABERDEEN AB9 2UE,SCOTLAND
[2] UNIV DUNDEE,DEPT APPL PHYS & ELECT & MECH ENGN,DUNDEE DD1 4HN,SCOTLAND
关键词
crystallography; organoantimony; dmit;
D O I
10.1016/S0277-5387(97)00004-1
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The ionic complexes [Q][Ph2Sb(dmit)(2)] (4; Q = NEt4 or 1,4-Me-2-pyridinium) and [Net(4)][(p-tolyl)(2)Sb(dmit)(2)] (5) have been prepared from [Q](2)[Zn(dmit)(2)] and Ar2SbCl3 in the presence of KSCN (H-2-dmit = 4,5-dimercapto-1,3-dithiole-2-thione). As shown by X-ray crystallography for 4 (Q = NEt4) and 5, these complexes contain distorted octahedral anions with cis-aryl groups : the C-Sb-C angles in 4 (Q = NEt4) and 5 are 93.1(2) and 95.3(5)degrees, respectively. The dmit chelates are unsymmetrically bonded to antimony in both 4 (Q = NEt4) and 5 with the longer bonds trans to the aryl groups (for both compounds, the Sb-S bond lengths are in the ranges, 2.614 to 2.636 and 2.530-2.550 Angstrom). (C) 1997 Elsevier Science Ltd.
引用
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页码:2563 / 2571
页数:9
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