Chemiluminescence in the reaction of the RuII trisbipyridyl complex with dimethyldioxirane

Article abstract of DOI:10.1007/BF02496203

The reaction of dimethyldioxirane (1) with the Ru^II trisbipyridyl complex accompanied by chemiluminescence (CL) was studied. It is established that the intensity of CL and the rate of its decay increase proportionally with the concentration of Ru^II. The bimolecular rate constant (k₂) of the reaction of 1 with Ru^II was determined. The activation parameters (E_a and logA) for this reaction were calculated from the temperature dependence of k₂. The excitation yield of Ru^II* (η*_Ru) was estimated. The quenching of Ru^II* by dioxirane was studied, and the bimolecular quenching constant and the coefficient of excitation regeneration were determined. It was suggested that the catalysis of the decomposition of 1 and the excitation of Ru^II occur via a mechanism of chemically initiated electron exchange.