Kinetics of photochemical reactions of spironaphthopyran azomethine upon photoexcitation with light of different wavelengths |
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Authors: | P. P. Levin N. L. Zaichenko A. I. Shienok L. S. Kol’tsova I. R. Mardaleishvili A. S. Tatikolov |
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Affiliation: | (1) Immune Building Systems, Inc., 575 Madison Ave., 10022 New York, NY, USA; |
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Abstract: | Spectral and kinetic characteristics of photolysis products in methanol of the photobifunctional compound, whose molecule contains the photochromic spironaphthopyran fragment as well as the hydroxynaphthylmethylenimine fragment in which intramolecular proton transfer can occur in the ground and excited states of the molecule, were studied by the method of nanosecond laser photolysis with excitation with light of wavelengths 337, 430, and 470 nm. The relative quantum yields of the formation of different photoproducts and their kinetic characteristics were measured. The dependence of the relative yield of the photoproducts of different nature on the wavelength of excitation light was revealed. |
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