The “excited state C–C bond cleavage–luminescence” phenomenon of a biphenyl-substituted methylenecyclopropane triggered by intermolecular energy transfer from triplet benzophenone‡
Literature Information
Taiki Kido
Existence of the “excited state C–C bond cleavage–luminescence” phenomenon was demonstrated by utilizing intermolecular energy transfer from the excited-triplet benzophenone to 2,2-di(4-biphenylyl)-1-methylenecyclopropane (3). An excellent linear relationship between the intensity of the excitation laser light and that of luminescence clearly shows that formation of the corresponding excited trimethylenemethane biradical 34˙˙* proceeds via a one-photon route.
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