Syntheses and chemistry of bis- and tris-mercaptoborates*
Sheldon G. Shore1, Ewan J. M. Hamilton2, Roman G. Kultyshev1, Hoitung T. Leung1, and Teshome Yisgedu1
1Department of Chemistry, Ohio State University, Columbus, OH 43210, USA; 2Department of Chemistry, Ohio State University at Lima, Lima, OH 45804, USA
Abstract: The preparation and chemistry of bis- and tris-mercaptoborates based on closo-B12 and closo-B10 structures is described. These species undergo a number of reactions such as halogenation and alkylation without changing the closo-borane core. Addition of the third dimethylsulfide substituent to the closo-boranes is thought to proceed via an unusual cationic intermediate.
Keywords: mercaptoborates; polyhedral boranes; synthesis; structures; clusters.
*Paper based on a presentation at the 12th International Meeting on Boron Chemistry (IMEBORON-XII), Sendai, Japan, 11-15 September 2005. Other presentations are published in this issue, pp. 1299-1453.