LASER FLASH-PHOTOLYSIS STUDIES ON THE INTERACTION BETWEEN TRIPLET BENZOPHENONE A

2020-03-26 13:41:38

transfer BP NPO triplet

责任者: YAMAJI, M;KIYOTA, T;KIMURA, S;SHIZUKA, H 单位: GUNMA UNIV,DEPT CHEM,KIRYU,GUMMA 376,JAPAN. 来源出处: CHEMICAL PHYSICS LETTERS, v 237, MAY 19 1995, p 419- 424 摘要: By means of nanosecond laser flash photolysis it has been found that the interaction between triplet benzophenone ((BP)-B-3*) and naphtholate anions (NpO-) is not triplet energy transfer but electron transfer to yield the benzophenone anion (BP-.) and naphthoxy (NpO.) radicals in acetonitrile-H2O (4:1 v/v) at 295 K. From the kinetic parameters for quenching of (BP)-B-3* by NpO- and quantum yields for the formation of BP-. and NpO., it was found that the efficiency for electron transfer between (BP)-B-3* and NpO- is unity due to the triplet spin-multiplicity of radical pairs. 关键词: POLY(METHYL-3-THIOPHENE); IN SITU AFM; STRUCTURE MODIFICATION; HYDROGEN-ATOM TRANSFER; SEPARATED ION-PAIRS; AROMATIC KETONES; METHOXYNAPHTHALENES; 1-NAPHTHOL; EXCIPLEX; SOLVENTS; CONTACT METHOXYNAPHTHALENES; 1-NAPHTHOL; EXCIPLEX; SOLVENTS; CONTACT