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D. G. TOVBIN, F. E. GOSTEV, A. N. PETRUKHIN, A. A. TITOV, V. A. NADTOCHENKO AND O. M. SARKISOV, Laser Spectroscopy Laboratory, N.Semenov Institute of Chemical Physics RAS, Moscow, Russia 119991; A. V. METELITSA, V. I. MINKIN, Institute of Physical and Organic Chemistry, Rostov State University, Rostov on Don, Russia, 344090.
The intramolecular light-induced H+ transfer was studied in the family of salicylideneaniline like (SA) moleculs by femtosecond laser absorption spectroscopy with time resolution ~80 fs. The characteristic times of the proton transfer step and futher relaxation process were determined. The evidences of two twisted intramolecular charge transfer structures were obtained. The key role of acoplanarization at the photochromic properties is discussed.