757953-40-5Relevant academic research and scientific papers
Synthesis, structure and formation pathways of new Fe-S complexes containing [Fe2S2]-units in different valences, [Fe2S2(CO)4(PPh3) 2], [Fe3S2(CO)6 (PPh3)3] and [Fe4S2(CO) 10]2-
Zhuang, Botao,Chen, Jun,He, Lingjie,Chen, Jiutong,Zhou, Zhangfeng,Wu, Kechen
, p. 2674 - 2683 (2004)
Novel Fe-S cluster complexes, Fe2S2 (CO)4(PPh3)2] (1), [Fe3 S2(CO)6(PPh3)3] (2) and [Ph4P]2[Fe4S2(CO) 10] (3) have been synthesized by the reaction of LiEt3BH with [Fe2S2(CO)6] in the presence of CuCl-PPh3, AgNO3 -PPh3 and CuClO3-MeCN, respectively.Structure determination indicated that 1, 2 and 3, respectively, possessed [Fe2S2]0 core with [Fe2 S2]0-unit, [Fe3S2] 0 with [Fe2S2]2- and [Fe4S2]2- core with [Fe2 S2]4- unit, which implied that [Fe2 S2(CO)6]2-, as a starting material, underwent a disproportionation in the synthetic reaction. Investigating the structure and synthetic reaction, an origin of the different valence[Fe2S2]-units and formation pathways of those clusters via disproportionation of the [Fe2 S2(CO)6]2- following by 'Unit Construction' were proposed and discussed. Elsevier B.V. All rights reserved.
