New Chemiluminescent Reaction Systems. Light Formation from the Reaction of a Vicinal Di-Acid Chloride.

摘要

Relatively efficient chemiluminescence was observed from the reaction of 3,6-diphenyl-3,5-cyclohexadiene-1,2-trans-dicarboxylic acid chloride with diisopropylethylamine and hydrogen peroxide in THF. The chemically formed electronically excited state was identified by spectral comparison and lifetime studies as that of p-terphenyl singlet. The yield of excited states was determined to be ca. 2 +or - 1%. Energy transfer from the first formed excited state to various acceptors was possible. It was demonstrated that singlet oxygen was not responsible for the observed chemiluminescence. The intermediacy of a cyclic diacyl peroxide in the chemielectronic step is considered. (Author)