Abstract
The photochromic properties of nitro-substituted spironaphthooxazines in polymer matrices of different polarity were investigated and the quantum yields of photocoloration and parameters of the dark decolorization reaction, which is a disperse process, were determined. The features of the behavior of the nitro-substituted spironaphthooxazines are determined by the more efficient reaction of the photoinduced form with the medium, which is the consequence of stabilization of the bipolar structure of the molecule of the colored form.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 3, pp. 543—547, March, 1990.
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Ovcharenko, A.G., Lyubimov, A.V., Nedoshivin, V.Y. et al. Photochromism of nitro-substituted spironaphthooxazines in polymer films. Russ Chem Bull 39, 471–474 (1990). https://doi.org/10.1007/BF00959562
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DOI: https://doi.org/10.1007/BF00959562