Bis(pyrazolylethyl)thioether ligation to zinc and cadmium:: structural characterization of [S(CH2CH2pzMe2)2]ZnCl2, [S(CH2CH2pzMe2)2]CdI2 and [S(CH2CH2pzMe2)2]Cd(NO3)2

被引：22

作者：

Ghosh, P ^{[1
]}

Wood, M ^{[1
]}

Bonanno, JB ^{[1
]}

Hascall, T ^{[1
]}

Parkin, G ^{[1
]}

机构：

[1] Columbia Univ, Dept Chem, New York, NY 10027 USA

来源：

POLYHEDRON | 1999年 / 18卷 / 8-9期

基金：

美国国家卫生研究院;

关键词：

zinc; cadmium; pyrazolyl; thioether; enzyme;

D O I：

10.1016/S0277-5387(98)00396-9

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Structural characterization of [S(CH(2)CH(2)pz(Me2))(2)]ZnCl2 by X-ray diffraction demonstrates that the potentially tridentate [NNS] donor ligand S(CH(2)CH(2)pz(Me2))(2) does not coordinate via sulfur, but only binds through the pyrazolyl groups. Furthermore, the ligand does not chelate, but preferentially bridges two zinc centers, thereby resulting in a polymeric, helical, structure. In contrast to the zinc system, the thioether functionality does bind to cadmium in related derivatives, [S(CH(2)CH(2)pz(Me2))(2)]CdI2 and [S(CH(2)CH(2)pz(Me2))(2)]Cd(NO3)(2). (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：1107 / 1113

页数：7

共 56 条

[1] STRUCTURAL ASPECTS OF CO-ORDINATED NITRATE GROUPS [J].