INVESTIGATIONS OF BIS-CHROMOPHORE SYSTEMS: RELATIONSHIP BETWEEN SPECTRAL BEHAVIOUR AND CHARGE TRANSFER IN 2-(3-COUMAROYL)-BENZOPYRYLIUM PERCHLORATES

Sanin, E., Novikov, A., Roshal, A. (2014). INVESTIGATIONS OF BIS-CHROMOPHORE SYSTEMS: RELATIONSHIP BETWEEN SPECTRAL BEHAVIOUR AND CHARGE TRANSFER IN 2-(3-COUMAROYL)-BENZOPYRYLIUM PERCHLORATES. Вісник Київського національного університету імені Тараса Шевченка. Хімія, 50(1), 74–77.

The dependence of spectral properties and interfragmental charge transfer (ICT) on excitation, relaxa­tion and excited state deactivation of 2-(3-coumaroyl)-benzopyrylium perchlorates has been analyzed. It was found that the positions of emission bands and rate constants of radiationless deactivation line­arly correlate with ICT upon excited state deactivation, and Stokes' shifts of fluorescence demonstrate linear dependence on ICT upon structural relaxation in the excited state.