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Ultrafast Deactivation of Excitation Energy in Rutin and Quercetin via Electron and Proton Transfers

Using femtosecond spectroscopy and steady-state luminescence methods, the mechanisms of very fast non-radiative deactivation (knr ~ 5 ? 1011 ?-1) of the electronic excitation energy at room temperature in organic and buffer solutions of well-known natural antioxidants rutin and quercetin have been studied.

Author(s): S.L. Bondarev,S.A. Tikhomirov, V.N. Knyukshto, O.V. Buganov, T.F. Raichenok