Kinetic studies on the ligand coupling reactions of tetraphenyl sulfurane, selenurane, and tellurane. Thermal stability for hypervalent chalcogen compounds with four carbon-chalcogen bonds

Article abstract of DOI:10.1016/S0040-4039(00)74780-0

Ligand coupling kinetics of tetraphenyl sulfurane, selenurane, and tellurane have been studied by the variable temperature NMR experiments. The first examples of the activation parameters for the ligand coupling (self decomposition and C-C bond formation) have been obtained for the reactions at three pentacoordinated chalcogenium centers; S, Se, Te.