carbaboranes

A class of boron compound of general formula [(CH)a(BH)mHb]c where c can be positive, negative or zero. The CH groups occupy polyhedron vertices, and other hydrogen atoms are either bridging or terminal.
Note:
The contraction 'carboranes' is also well established as the generic name for this class of compound.
Source:
Red Book, p. 228
PAC, 1995, 67, 1307 (Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)) on page 1326