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Bis(8-methyl-2,8-dicarba-closo-dodecaboran-2-yl) triselenide

Acta Cryst. (2011). E67, o1908 (

[Triselenide plot]

The structure of the title compound is reported, the first (to our knowledge) dicarboranetriselenide described so far. Two closo-C2B10 icosahedra are linked by a chain of three selenium atoms: the Se–Se bond lengths suggest that they can be regarded as single covalent bonds. The geometry around the central Se atom is V-shaped, with an Se–Se–Se angle of 105.60 (4)°, and the C–Se–Se–Se torsion angles indicate a strongly twisted conformation for the linking triselenide grouping.

A. Ilie, A. Soran, A. Laguna and C. Silvestru