REACTION OF BIS(μ-CHALCOGENO) COMPLEXES 5-RC5H4)2M(μ-E)>2 M = Zr, Hf; R = H, t-Bu; E = S OR Se FROM METALLOCENE DICHLORIDES, AND ISOLATION OF THE MIXED μ-COMPLEXES (μ-O)(μ-E)

Article abstract of DOI:10.1016/0022-328X(85)80156-X

Metallocene dichlorides (RCp)2MCl2 (M = Zr, Hf; R = H, t-Bu) react with E/2HLiBEt3 (E = S, Se) to give the symmetrical dinuclear compounds <(RCp)2M(μ-E)>2.UV irradiation in toluene of <(t-BuCp)2Zr(CH3)>2(μ-O) in the presence of powdered sulfur or gray sel