Red-edge excitation effect in intramolecular proton transfer in flavonols

Julia V. Kruchenok; Nicolai A. Nemkovich; A. N. Sobchuk; E. P. Petrov; Anatoly Nikolaevich Rubinov; V. G. Pivovarenko; Wolfram Baumann

doi:10.1117/12.468924

30 May 2002 Red-edge excitation effect in intramolecular proton transfer in flavonols

Julia V. Kruchenok, Nicolai A. Nemkovich, A. N. Sobchuk, E. P. Petrov, Anatoly Nikolaevich Rubinov, V. G. Pivovarenko, Wolfram Baumann

Author Affiliations +

Proceedings Volume 4749, ICONO 2001: Novel Trends in Nonlinear Laser Spectroscopy and Optical Diagnostics and Lasers in Chemistry, Biophysics, and Biomedicine; (2002) https://doi.org/10.1117/12.468924
Event: XVII International Conference on Coherent and Nonlinear Optics (ICONO 2001), 2001, Minsk, Belarus

Abstract

To investigate of 4'-diethylamino (FET) and 4'-(15-azacrown- 5) (FCR) derivatives of 3-hydroxyflavone in binary solvents and erythrocyte ghosts, we used the red-edge excitation spectroscopy. The results obtained prove the existence of spectral heterogeneity of flavonols in the studied systems. The effect manifests itself in the dependence of the efficiency of excited-state intramolecular proton transfer on the excitation frequency.

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Julia V. Kruchenok, Nicolai A. Nemkovich, A. N. Sobchuk, E. P. Petrov, Anatoly Nikolaevich Rubinov, V. G. Pivovarenko, and Wolfram Baumann "Red-edge excitation effect in intramolecular proton transfer in flavonols", Proc. SPIE 4749, ICONO 2001: Novel Trends in Nonlinear Laser Spectroscopy and Optical Diagnostics and Lasers in Chemistry, Biophysics, and Biomedicine, (30 May 2002); https://doi.org/10.1117/12.468924

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