Also at the Photochemistry Laboralory of Institute of Photographic Chemistry;
Academia Sinica;
Beijing 100101;
PRC;
Department of Chemistry;
Peking University;
Beijing 100871;
PRC;
Photochemistry Laboratory;
Institute of Photographic Chemistry;
Academia Sinica;
Beijing 100101;
PRC;
spirooxazine; photochromism; flash; photolysis; time-resolved; absorption; spectra;