X-ray crystal structures of [NHR3]2[Fe4S4X4] (X = PhS, R = Et or nBu; X = Cl, R = nBu): implications for sites of protonation in Fe–S clusters

被引：0
作者：
Thaer M. M. Al-Rammahi
Paul G. Waddell
Richard A. Henderson
机构：
[1] Newcastle University,School of Chemistry
[2] University of Kerbala,Department of Chemistry, College of Science
来源：
Transition Metal Chemistry | 2016年 / 41卷
关键词：
Diethyl Ether; MeCN; Thiolate; Benzoyl Chloride; Cluster Core;
D O I：
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学科分类号：
摘要：
The X-ray crystal structures of [NHR3]2[Fe4S4X4] (X = PhS, R = Et or nBu; X = Cl, R = nBu), reported in this paper, show NH…X interactions between the cation and the cubanoid cluster. Comparison of the cluster dimensions in [NHR3]2[Fe4S4X4] with those reported earlier for [NR′4]2[Fe4S4X4] (R′ = Me, X = PhS; R′ = Et, X = Cl) indicates that N–H…X interactions have a negligible effect on the dimensions of the cluster. The relevance of these structures to understanding where on [Fe4S4X4]2− protonation labilises the cluster to substitution is discussed.
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页码：555 / 561
页数：6
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