作者:C.L. Coyle、K.A. Eriksen、S. Farina、J. Francis、Y. Gea、M.A. Greaney、P.J. Guzi、T.R. Halbert、H.H. Murray、E.I. Stiefel
DOI:10.1016/s0020-1693(00)92400-9
日期:1992.8
A series of tetranuclear Mo4S4(R2NCS2)6 complexes has been prepared by using the 'self-assembly' route as well as by synthesis from well-defined molecular building blocks. A variety of mononuclear, dinuclear and trinuclear building blocks have been successfully used to prepare the tetranuclear Mo4S46+ complexes. These thiocubanes have been prepared with mono-anionic 1,1-dithiolate ligands, which provide each of the Mo atoms with a pseudo-octahedral coordination geometry and result in the formation of neutral species. Mo4S4L6 complexes with dialkyldithiocarbamate (DTC), R2NCS2; dialkyldithiophosphate (DDP), (RO)2PS2; alkylxanthate (XAN), ROCS2; and alkylthioxanthate (THIOXAN), RSCS2 ligands have been prepared. The structure of the Mo4S4(DDP)6 complex was determined by single crystal X-ray structure analysis and is compared with the structures of other known Mo4S4 thiocubane complexes. The synthesis, electrochemistry, reactivity and bonding of the tetranuclear clusters are presented.