MOLECULAR-STRUCTURES OF THE BIMETALLIC SULFIDE CLUSTERS CP'2MO2CO2S4(CO)(2), CP'2MO2CO2S3(MU(3)-PPH)(CO)(2), CP'3MO3COS4(CO), AND CP'3MO3FES4(SH)

The preparation and molecular structures of the clusters Cp'3Mo3CoS4(C O), Cp'3Mo3FeS4(SH), and Cp'2Mo2Co2S3(PPh)(CO) are reported along with the structure of the previously known cluster Cp'2Mo2Co2S4(CO)(2). Al l these compounds have a tetrahedron of metal atoms at distances corre sponding to metal-metal single bonds with mu(3)-S ligands capping the triangular metal faces of the tetrahedron to give an overall cubanelik e geometry to the clusters. In Cp'2Mo2Co2S3(PPh)(CO), there is one mu( 3)-PPh ligand in addition to three mu(3)-S ligands.