Metal perfluoro-alkyl- and -aryl-thiolates. Part II. Molybdenum, tungsten, manganese, iron, and nickel derivatives

Abstract

Photolytic reactions between bisulphides and carbonyl derivatives produce unstable Mn(CO)₅SR and (π-C₅H₆)Ni(CO)SR (R = CF₃ or C₆F₅) which dimerise through decarbonylation. (π-C₅F₅)Fe(CO)₂SCF₃ undergoes decarbonylation to isomers of [(π-C₅H₅)Fe(CO)SCF₃]₂ on photolysis. The structures of the isomers and factors affecting tendencies to dimerisation are discussed. [M(CO)₄SCF₃]₂(M = Mo and W) are formed by photolysis of M(CO)₆ and CF₃SSCF₃ using filtered radiation. Substitution of [Fe(CO)₃SCF₃]₂ by triphenylphosphine to produce Fe₂(CO)₅(PPh₃)(SCF₃)₂ and [Fe(CO)₂(PPh₃)SCF₃]₂ and by nitric oxide to produce [Fe(NO)₂SCF₃]₂ is described.