Studies on photooxidation (VIII)——Electron transfer photooxygenation mechanism of acenaphthenone as electron donor  

作　　者：吴树屏 刘继峰 江致勤 

机构地区：[1]Department of Chemistry, Tongji University, Shanghai 200092, China

出　　处：《Science China Chemistry》1996年第2期171-178,共8页中国科学（化学英文版）

基　　金：Project supported by the National Natural Science Foundation of China

摘　　要：The photooxidation and its electron transfer (ET) mechanism of acenaphthenone (ANO) sensitized by 9,10-dicyanoanthracence (DCA) are investigated. It has been found that the reaction with a stepwise manner led to the formation of 1,8- (3’-hydroxy)-β-naphthalene lactone and 1,8-naphthalenedicarboxylic anhydride. By cyclic voltammetry, fluorescence quenching, exciplex emission, co-sensitbation of biphenyl/DCA as well as CIDNP studies, it is verified that ANO can behave as an electron donor to undergo ET reaction with singlet DCA which is a thermodynamically-favored process.The photooxidation and its electron transfer (ET) mechanism of acenaphthenone (ANO) sensitized by 9,10-dicyanoanthracence (DCA) are investigated. It has been found that the reaction with a stepwise manner led to the formation of 1,8- (3'-hydroxy)-β-naphthalene lactone and 1,8-naphthalenedicarboxylic anhydride. By cyclic voltammetry, fluorescence quenching, exciplex emission, co-sensitbation of biphenyl/DCA as well as CIDNP studies, it is verified that ANO can behave as an electron donor to undergo ET reaction with singlet DCA which is a thermodynamically-favored process.

关 键 词：PHOTOOXYGENATION electron transfer acenaphthenone EXCIPLEX CIDNP. 

分 类 号：O621[理学—有机化学]