PHOTOCHEMICAL SYNTHESIS OF METAL CARBONYL COMPLEXES OF TETRAALKYLDIPHOSPHINE DISULFIDES, [M₂(CO)₁₀(μ-R₂P(S)P(S)R₂)] (M = Mo, W; R = Me, Et,<i>n</i>-Pr,<i>n</i>-Bu)

Abstract

The new complexes [M2(CO)10(μ-R2P(S)P(S)R2)] (M = Mo, W; R = Me, Et, n-Pr, n-Bu), (la)–(1d) and (2a)–(2d) [(1a), M = Mo, R = Me; (1b), M = Mo, R = Et; (1c), M = Mo, R = n-Pr; (1d), M = Mo, R = n-Bu; (2a), M = W, R = Me; (2b), M = W, R = Et; (2c), M = W, R = n-Pr; (2d), M = W, R = n-Bu] have been prepared by the photochemical reaction of M(CO)6 with R2P(S)P(S)R2 (R = Me, Et, n-Pr, n-Bu). The complexes have been characterized by elemental analyses, FT-IR and 31P-[1H]-NMR spectroscopy and FAB-mass spectrometry. The spectroscopic studies suggest cis-bridging bidentate coordination of the ligand between the two metals.