Mechanism for Photocleavage of N-(Anthroyloxy)-9-fluorenylideneamines and Dynamic Behavior of Anthroyloxyl Radicals.

…, M Kaneko, K Segawa, H Itoh, H Sakuragi

Index: Saitoh, Yasuo; Kaneko, Makoto; Segawa, Katsunori; Itoh, Hiroki; Sakuragi, Hirochika Bulletin of the Chemical Society of Japan, 2002 , vol. 75, # 9 p. 2013 - 2023

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Abstract

Photocleavage of the N–O bond of N-(9-anthroyloxy)-9-fluorenylideneamine and its 1-and 2- anthroyloxy derivatives takes place efficiently in acetonitrile in the excited singlet state attributed to the fluorenylidene moiety. This made it possible for the first time to directly observe anthroyloxyl radicals by the transient absorption method. The quantum efficiency for photocleavage decreases remarkably in benzene, in which the lowest excited singlet state ...

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