The chemistry of π-cyclopentadienyl nitrosyl molybdenum complexes. Compounds containing bridging iodine and sulphur ligands

Abstract

The syntheses and chemistry of the related binuclear complexes, [(π-C5H5)Mo(NO)X2]2, [(π-C5H5)Mo(NO)X]2, and [(π-C5H5)Mo(NO)(I)(SCH2Ph)]2(X = I, SCH2Ph or SPh) are reported. Examination of the complexes by mass spectral and i.r. techniques has shown that although the structures of [(π-C5H5)Mo(NO)X2]2 and [(π-C5H5)Mo(NO)(I)(SCH2Ph)]2 appear to be similar and to contain, probably, two bridging groups X, and two terminal X and NO groups, [(π-C5H5)Mo(NO)X]2 may contain only bridging groups, X and NO, and a Mo–Mo bond. The mixed ligand species, [(π-C5H5)Mo(NO)(I)(SCH2Ph)]2, is shown spectrally to exist as isomers, one of which contains bridging SCH2Ph groups and terminal I atoms.