Photophysics and photochemistry of nitroanthracenes. Part 2. Primary process in the photochemical reaction of 9-nitroanthracene studied by steady-state photolysis and laser photolysis
作者:Kumao Hamanoue、Toshihiro Nakayama、Kanji Kajiwara、Shigenobu Yamanaka、Kiminori Ushida
DOI:10.1039/ft9928803145
日期:——
to 9-anthryloxy radical and nitrogen(II) oxide, yielding 9-anthrol (and anthrone), 10,10′-bianthrone and 9-nitrosoanthrone in ethanol; and 10,10′-bianthrone and 9-nitrosoanthrone in benzene. Hence, the primary process in the photochemical reaction of NA is essentially identical with those of 9-benzoyl-10-nitroanthracene and 9-cyano-10-nitroanthracene except that no 10,10′-bianthrone derivatives are
通过测量9-硝基蒽(NA)的最低激发三重态ππ*状态的磷光和三重态-三重态吸收光谱以及9-蒽氧基的吸收光谱,得出的结论是9-硝基蒽的光解会产生硝基→亚硝酸重排以获得nπ*特性的更高激发三重态,然后将9-蒽亚硝酸盐裂解为9-蒽氧基和氮(II)氧化物,生成9-蒽酚和蒽酮,10,10'-蒽醌乙醇中的9-亚硝基蒽酮;苯中的10,10'-联蒽酮和9-亚硝基蒽酮。因此,NA的光化学反应的主要过程与9-苯甲酰基-10-硝基蒽和9-氰基-10-硝基蒽的过程基本相同,只是没有形成10,10'-联蒽酮衍生物。