Transition metal complexes with sulfur ligands Part CII. Changes in configuration and reactivity caused by alkyl substituents R in [Fe(L)(‘NRS4’)] complexes (LCO, NO+, NO, PMe3, N2H4; RCH3, CH2CH2CO2CH3, CH2CH2CO2−)
作者:Dieter Sellmann、Thomas Becker、Thomas Hofmann、Falk Knoch、Matthias Moll
DOI:10.1016/0020-1693(94)03819-8
日期:1994.5
well as the free ligands ‘N E S 4 ’-H 2 ·HCl ( 5 ), ‘N Me S 4 ’-H 2 ·HCl ( 4 ) and Na 3 -‘N A S 4 ’ ( 14 ) were synthesized. 1 was characterized by X-ray structure analysis. It crystallizes in the space group P 2 1 / c with a = 753.9(4), b = 1283.7(8), c = 1931.9(10) pm, β = 95.86(4)°, Z = 4. Unexpectedly, the [Fe(L)(‘N R S 4 ’)] complexes (R = CH 3 , CH 2 CH 2 CO 2 CH 3 , CH 2 CH 2 CO 2 Na) show different
摘要为寻找能揭示固氮酶活性位点功能和结构特征的配合物,铁(II)配合物[Fe(L)('NES 4')](E = CH 2 CH 2 COOCH 3; L = CO(2) ,PMe 3(11),N 2 H 4(9))和[Fe('NES 4')] x(7),[Fe(L)('N Me S 4')](L = CO(1 ),PMe 3(10),N 2 H 4(8),NO(13),NO +(12))和[Fe('N Me S 4')] x(6),Na [Fe(CO) ('NAS 4')](16)(A = CH 2 CH 2 COO-)和Na [Fe('NAS 4')} x(15)以及游离配体'NES 4'-H 2·合成了HCl(5),'N Me S 4'-H 2·HCl(4)和Na 3 -'NAS 4'(14)。通过X射线结构分析表征了图1。它在空间组P 2 1 / c中以a = 753.9(4),b