metal-organic compounds
In the title compound, (η5-2,5-dimethylpyrrolyl)[(7,8,9,10,11-η)-7-methyl-7,8-dicarba-nido-undecaborato]cobalt(III), [3-Co{η5-[2,5-(CH3)2-NC4H2]}-1-CH3-1,2-C2B9H10] or [Co(C3H13B9)(C6H8N)], the CoIII atom is sandwiched between the pentagonal faces of the pyrrolyl and dicarbollide ligands, resulting in a neutral molecule. The C—C distance in the dicarbollide cage is 1.649 (3) Å.