TY - SER AU - Vusovich,Olga V. AU - Sokolova,Irina V. AU - Vasileva,N.Yu AU - Tchaikovskaya,Olga N. TI - Quantum-chemical study of electronically excited states of protolytic forms of vanillic acid KW - квантово-химические методы KW - ванильная кислота KW - молекулярный электростатический потенциал KW - электронно-возбужденные состояния KW - статьи в журналах N1 - Библиогр.: 11 назв N2 - The paper describes an analysis of possible ways of deactivation of electronically excited states of 4-hydroxy- 3-methoxy-benzoic acid (vanillic acid) and its protolytic forms with the use of quantum-chemical methods INDO/S (intermediate neglect of differential overlap with a spectroscopic parameterization) and MEP (molecular electrostatic potential). The ratio of radiative and non-radiative deactivation channels of the electronic excitation energy is established. The rate constants of photophysical processes (internal and intercombination conversions) occurring after the absorption of light in these forms are evaluated. © (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only UR - http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000553381 ER -