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Pure Appl. Chem., 2012, Vol. 84, No. 11, pp. 2233-2241

Published online 2012-04-29

Heterometallic cubane-type clusters containing group 13 and 16 elements

K. Geetharani, Shubhankar Kumar Bose and Sundargopal Ghosh*

Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India

Abstract: Heterometallic cubane-type clusters were synthesized from the reaction of group 6 and 8 metallaboranes using transition-metal carbonyl compounds. Structural and spectroscopic study revealed the existence of novel “capped-cubane” geometry. In addition, the crystal structure of these clusters distinctly confirms the presence of boride unit as one of the vertices. These clusters possess 60 cluster valence electrons (cve) and six metal–metal bonds. A plausible pathway for the formation of ruthenium-capped cubane has been described.