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硼氢化物阴离子作为铁/钼/硫簇上的端基配体。[(Cl4-cat)(PPr3)MoFe3S4(BH4)2]2(Bu4N)4双稠合立方烷的合成、结构与表征

Borohydride anions as terminal ligands on a Fe/Mo/S cluster. Synthesis, structure, and characterization of the [(Cl4-cat)(PPr3)MoFe3S4(BH4)2]2(Bu4N)4 double-fused cubane.

作者信息

Koutmos Markos, Coucouvanis Dimitri

机构信息

Department of Chemistry, The University of Michigan, Ann Arbor, Michigan 48109, USA.

出版信息

Inorg Chem. 2004 Oct 18;43(21):6508-10. doi: 10.1021/ic049275w.

DOI:10.1021/ic049275w
PMID:15476337
Abstract

The synthesis and structure of the first Mo/Fe/S/BH(4) cluster is reported. Reaction of (Cl(4)-cat)(2)Mo(2)Fe(6)S(8)(PPr(3))(6) with 4 equiv of Bu(4)NBH(4) results in the formation of (Cl(4)-cat)(PPr(3))MoFe(3)S(4)(BH(4))(2)(Bu(4)N)(4) (Cl(4)-cat = tetrachloro-catecholate) which has been fully characterized. X-ray structural determination of this double-fused cubane reveals four BH(4)(-) ligands bound to four Fe atoms in a bidentate fashion. A synopsis of the solution characterization as well as the reactivity of this cluster is also presented.

摘要

报道了首个钼/铁/硫/硼氢化四氢根簇合物的合成与结构。(Cl(4)-cat)(2)Mo(2)Fe(6)S(8)(PPr(3))(6)与4当量的Bu(4)NBH(4)反应生成(Cl(4)-cat)(PPr(3))MoFe(3)S(4)(BH(4))(2)(Bu(4)N)(4)（Cl(4)-cat = 四氯邻苯二酚盐），该产物已得到全面表征。对这种双稠合立方烷的X射线结构测定表明，有四个硼氢化四氢根配体以双齿方式与四个铁原子相连。还介绍了该簇合物的溶液表征及反应活性概述。

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