title: The "excited state C-C bond cleavage-luminescence" phenomenon of a biphenyl-substituted methylenecyclopropane triggered by intermolecular energy transfer from triplet benzophenone.
abstract: 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 (3)4˙˙* proceeds via a one-photon route.
authors.affiliation: Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan. ikeda@chem.osakafu-u.ac.jp.
authors.forename: Yasunori
authors.initials: Y
authors.lastname: Matsui
authors.forename: Taiki
authors.initials: T
authors.lastname: Kido
authors.forename: Eisuke
authors.initials: E
authors.lastname: Ohta
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Ikeda