Metal complexes of monocarbon carboranes bearing C-amine or -amino substituents

Icosahedral metal–monocarbollide complexes in which the carbon atom of the {nido-CB10} fragment carries an exo-polyhedral –NR3 or –NR2 group have an extensive chemistry. This is illustrated with complexes of ruthenium, osmium, rhodium, molybdenum, tungsten and rhenium. Many complexes with molecular structures new to the metallacarborane field have been discovered, and it has been shown that it is possible to introduce functional groups into the {nido-CB10} cage system in many different ways.