The reaction of the electronically unsaturated Cp*2Cr2B4H8 (1; Cp* = η5-C5Me5) cluster with CS2 yields the saturated Cp*2Cr2(CH2S2B 4H6) (3) cluster in better than 90% isolated yield. Both solution spectroscopic and solid-state crystallographic data show that 3, with C2 point symmetry, contains an intracluster bridging methanedithiolato H2CS2 ligand in which the S atoms of the ligand have replaced two transoid BHCr bridging hydrogens in 1, which in turn have added to the carbon atom. The three compounds 1, Cp*2Cr2(CO)2B4H6 (2), and 3 exhibit similar cluster geometries but possess 42, 44, and 46 cluster valence electrons, respectively.
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Organic Chemistry
- Inorganic Chemistry