CHEMILUMINESCENCE IN LIQUID SOLUTIONS: THE CHEMILUMINESCENCE OF LOPHINE AND ITS DERIVATIVES*

Abstract

Abstract— A number of derivatives and analogs of lophine (Ia) have been prepared in an effort to elucidate the chemiluminescence of this class of compounds. A hydroperoxide has been implicated as a reaction intermediate; intramolecular decomposition of this compound yields an excited singlet state of a diaroylarylamidine salt ( IX ). the light emitter in the reaction. Consistent with this view is the fact that in two cases the chemiluminescence emission matches the wavelength distribution in the fluorescence of the amidine salts. A brief discussion is given of the nature of chemiluminescence of reactions in solution.