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Published on: February 15, 2016
A 14-vertex bud-shaped [(Cp*Ti)2B12H18] cluster
Subhash Bairagi1, Debipada Chatterjee1, Deepak Kumar Patel1
1Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India. sghosh@iitm.ac.in.
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An unusual 14-vertex macropolyhedral titanaborane, [(Cp*Ti)2B12H18] (Cp* = η5-C5Me5; 1), has been synthesized and structurally characterized. This cluster consists of two 9-vertex arachno-subclusters fused through a common butterfly face, along with two additional inter-subcluster B-B linkages that are crucial in defining its geometry, electron count and stability. In addition, a 17-vertex macropolyhedral titanaborane, [(Cp*Ti)2(B15H20)(µ-SH)] (2), has been isolated, in which three nido-subclusters are fused through two triangular faces. Interestingly, unlike 2, cluster 1 does not follow the Mingos fusion formalism or the Jemmis mno rule.
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