Transition metal complexes with carboranylphosphine ligands

[Display omitted] •Transition metal complexes with C-and B-carboranyl phosphines are reviewed.•Transition metal complexes with monocarborane-based phosphines are considered.•Practical application of carboranyl phosphine based complexes are discussed. Synthesis and structure of transition metal complexes with phosphine ligands derived from icosahedral dicarbaboranes C2B10H12, monocarbaboranes [CB9H10]− and [CB11H12]−, as well as various metallacarboranes are reviewed. Possibilities of practical application of such complexes are discussed.