R_2dtc为配体的异核过渡金属—硫簇合物研究

Studies on Heterometallic Sulfide Clusters Containing R2dtc Ligand

本文是作者近年来对R_2dtc为配体的异核过渡金属-硫簇合物的研究工作综述。研究对象包括Mo—Fe—S、W—Fe—S、Mo—Cu—S、W—Cu—S、V—Cu—S组成的四核及四核以上单立方烷、双立方烷、平面型及链状簇合物。综合讨论了它们的合成与结构,提出了R_2dtc配体的结构特点在某些簇骼形成过程中的作用。

This is a review to summarize the studies on heterometallic sulfide clusters containing R2dtc ligand. It is based on the works given in this laboratory for a number of years by the authors. A series of clusters including MonFe4-nS4 (n = 0 - 3) , WFe3S4, V2Cu2S4 single cubane clusters, Mo2Cu5S8, W2Cu5S8 incomplete double cubane clusters, a linear tetranuclear Mo-Fe-Fe-Mo cluster, planar tetranuclear MoCu3 and WCu3 clusters, and a planar pentanuclear VCu4 cluster have been obtained.Discussing the synthetic routes , we have noted that R2dtc plays an important role in promoting the formation of above clusters and favours stabilizing the cluster core containing high valence metal. Meanwhile, the discussion also exhibits an interesting fact that several types of clusters can be obtained from the same synthetic system under almost identical conditions.