Polynuclear complexes of copper(I) halides: coordination chemistry and catalytic transformations of alkynes

Characteristic features of the coordination chemistry of Cu(I) and mechanisms of catalytic conversions of alkynes in the CuCl–MCl–H₂O–HC≡CR system (MCl is alkali metal or ammonium chloride or amine hydrochloride; R=H, CH₂OH, CH=CH₂, etc.) are analysed based on studies of the compositions and structures of copper(I) chloride (bromide) complexes, alkyne π-complexes and ethynyl organometallic polynuclear compounds formed in this system in solutions and in the crystalline state. The role of polynuclear complexes in various reactions of alkynes is discussed. The bibliography includes 149 references.