Single protonation labilises but double protonation inhibits substitution of [Fe4S4Cl4]2-

被引:19
作者
Henderson, RA [1 ]
Oglieve, KE [1 ]
机构
[1] John Innes Ctr Plant Sci Res, Nitrogen Fixat Lab, Norwich NR4 7UH, Norfolk, England
来源
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS | 1998年 / 11期
关键词
D O I
10.1039/a802303d
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Successive protonation of [Fe4S4(SPh)(4)](2-) progressively labilises the cluster towards substitution of the thiolate ligands, whereas single protonation of [Fe4S4Cl4](2-) catalyses, but diprotonation inhibits, substitution of the chloro-ligands.
引用
收藏
页码:1731 / 1733
页数:3
相关论文
共 6 条
[1]   A new approach to identifying substrate binding sites on isolated FeMo-cofactor of nitrogenase [J].
Gronberg, KLC ;
Gormal, CA ;
Smith, BE ;
Henderson, RA .
CHEMICAL COMMUNICATIONS, 1997, (07) :713-714
[2]   Characteristics of acid-catalysed substitution mechanisms and sites of protonation in iron-sulfur-based clusters, as revealed by studies on [Cl2FeS2VS2FeCl2](3-) [J].
Gronberg, KLC ;
Henderson, RA .
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1996, (18) :3667-3675
[4]  
HENDERSON RA, 1993, J CHEM SOC DALTON, P1467
[5]  
Izutsu K., 1990, ACID BASE DISSOCIATI
[6]   In quest of competitive catalysts for nitrogenases and other metal sulfur enzymes [J].
Sellmann, D ;
Sutter, J .
ACCOUNTS OF CHEMICAL RESEARCH, 1997, 30 (11) :460-469