Preparation and properties of a 4Fe-4S cluster complex chelated by pyridine-2-thiolato ligands, (Et4N)2[Fe4S4(S-2-(4-NO2)C5H3N)4]

被引：3

作者：

Ueda, M ^{[1
]}

Mochida, T ^{[1
]}

机构：

[1] Toho Univ, Fac Sci, Dept Chem, Miyamae Ku, Chiba 2748510, Japan

来源：

INORGANICA CHIMICA ACTA | 2003年 / 353卷

基金：

日本学术振兴会;

关键词：

crystal structure; iron-sulphur cluster; chelate complex; pyridinethiolato ligand; electrochemistry;

D O I：

10.1016/S0020-1693(03)00238-X

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A 4Fe-4S cluster complex with pyridine-2-thiolato ligands, (Et4N)(2)[Fe4S4(S-2-(4-NO2)C5H3N)(4)], has been synthesized by the ligand exchange reaction. X-ray structure analysis revealed that the Fe atoms in the core are chelated by the ligands in a bidentate form. The four-membered chelate ring has a very small bite angle of N-Fe-S = 64.7degrees. The complex crystallizes in space group Fddd, displaying a highly symmetrical molecular structure. A quasi-reversible redox wave is observed at E-1/2 = -1.46 V (vs. SCE), showing a large negative shift relative to those in ordinary arenethio analogues. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：306 / 309

页数：4

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