Heterobimetallic S,S-bridged complexes, [S2MS2M'I-2](2-) (M=Mo, W; M'=Cd-II, Hg-II, Zn-II): Synthesis, structure and redox properties

被引：4
|
作者：
Ghosh, I
Mishra, R
Bhattacharyya, R
Mukherjee, M
Mukherjee, AK
机构：
[1] JADAVPUR UNIV,DEPT CHEM,CALCUTTA 700032,W BENGAL,INDIA
[2] INDIAN ASSOC CULTIVAT SCI,DEPT SOLID STATE PHYS,CALCUTTA 700032,W BENGAL,INDIA
[3] JADAVPUR UNIV,DEPT PHYS,CALCUTTA 700032,W BENGAL,INDIA
来源：
POLYHEDRON | 1997年 / 16卷 / 14期
关键词：
heterobimetallic complexes; S; S-bridged complexes; diiodo-tetrathiometalato; mercurate(II); diiodo-tetrathiometalato cadmate(II); diiodo-tetrathiometalato zincate(II); TETRATHIOMETALATE COMPLEXES; COORDINATION CHEMISTRY; CRYSTAL-STRUCTURE; MO-S; TETRATHIOTUNGSTATE; LIGANDS; SULFUR;
D O I：
10.1016/S0277-5387(96)00561-X
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Heterobinuclear complexes, [S2MS2M'I-2](2-) (M = Mo, W; M' = Cd, Hg, Zn), have been synthesized as PPh4- salts by reacting [M'I-4](2-) with [MS4](2-). The complexes are characterized by nu (metal-sulphur) terminal, nu (metal-sulphur) bridging and nu (metal-iodine) terminal vibrations in their IR spectra. The single-crystal X-ray structure analysis of (PPh4)(2)[S2WS2CdI2] (1) reveals a two-fold anionic disorder. The coordination geometries about the metal centers in the anions [S2WS2CdI2](2-), containing planar [WS2Cd] cores, are best described as distorted edge-shared bitetrahedra. The oxidation states of cadmium and tungsten in a sulfur environment in 1 have been confirmed by X-ray photoelectron spectroscopy. Zn-II and Cd-II complexes each show a single metal centered irreversible cyclic voltammetric response essentially localised within [MS4](2) ligands. (C) 1997 Elsevier Science Ltd.
引用
收藏
页码：2483 / 2490
页数：8
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