in deuterated toluene Kinetics; byproducts: H2S; (N2); using Schlenk techniques; dissolving of (EtC5Me4)ReCl2(SCH2CH2S) in toluene-d8, filtration, placing into NMR tube, freezing, evacuating, addn. of large excess of S8, degassing, sealing, heating to 70°C for several days; identification by NMR;