Excitation of chemiluminescence in the reaction of benzophenone-O-oxide with diphenyldiazomethane. Quantum-induced decomposition of diphenyldiazomethane

Article abstract of DOI:10.1007/BF02496005

The excitation yield (Φ*) of triplet benzophenone in the chemiluminescence reaction of thermal decomposition of diphenyldiazomethane (Ph₂CN₂) was measured. Triplet benzophenone was produced by the reaction of benzophenone-O-oxide with Ph₂CN₂ in a MeCN solution. The Φ* value is equal to 0.05 and temperature-independent. Analysis of the dependences of the observed rate constant of chemiluminescence decay on the concentration of Ph₂CN₂ both in the presence and absence of a luminescence activator suggests the quantum-induced decomposition of diazomethane in the reaction with triplet benzophenone. The rate constant of the reaction of triplet benzophenone with Ph₂CN₂ was estimated.