carborane
carborane
A class of boron compound of general formula [(CH)<small><sub><em>a</em></sub></small>(BH)<small><sub><em>m</em></sub></small>H<small><sub><em>b</em></sub></small>]<small><sup><em>c</em></small></sup>  where <em>c</em> can be positive, negative or zero. The CH groups occupy polyhedron vertices, and other hydrogen atoms are either bridging or terminal.