Synthesis and Reactions of Cubane-Type Iron−Sulfur−Phosphine Clusters, Including Soluble Clusters of Nuclearities 8 and 16
作者:Hong-Cai Zhou、R. H. Holm
DOI:10.1021/ic020464t
日期:2003.1.1
monocubanes [Fe(4)S(4)(PR(3))(4)] (R = Pr(i), Cy, Bu(t); generated in solution). In turn, [Fe(4)S(4)(PPr(i)()(3))(3)(SSiPh(3))] and [Fe(4)S(4)(PPr(i)(3))(4)] can be transformed into the dicubanes [Fe(8)S(8)(PPr(i)()(3))(4)(SSiPh(3))(2)] and [Fe(8)S(8)(PPr(i)((3))(6)], respectively. Further, the tetracubanes [Fe(16)S(16)(PR(3))(8)] are also accessible from [Fe(4)S(4)(PR(3))(4)] under different conditions
已经合成了一个具有三级膦连接的核,4、8和16的可溶性还原铁硫簇家族,该族基于Fe(4)S(4)古巴型结构基序。这项调查的结果大大扩展并改善了我们关于铁-硫-膦簇的原始工作的结果(Goh,C .; Segal,BM; Huang,J .; Long,JR; Holm,RHJ Am.Chem.Soc。 1996,118,11844)。该簇家族的一般性质是容易的膦取代。簇[Fe(4)S(4)(PR(3))(4)](+)是单取代[Fe(4)S(4)(PR(3))(3)X](X的前体= Cl-,RS-),均一性[Fe(4)S(4)(SR)(4)](3-)和全铁单碱基[Fe(4)S(4)(PR(3)) (4)](R = Pr(i),Cy,Bu(t);在溶液中产生)。反过来,这些簇容易分裂成单个古巴人,被认为是mu(4)-S原子上键角张紧的可能结果。四库包含四个单独的库,每个库都包含在两个桥菱形中,以