Photochromism of 6′-Cyano-Substituted Spironaphthooxazines in the Solid Phase
E. M. GLEBOV1,2, A. B. SMOLENTSEV1, V. V. KOROLEV1,2, V. F. PLYUSNIN1,2, A. V. METELITSA3, N. A. VOLOSHIN3 and V. I. MINKIN3
1 Institute of Chemical Kinetics and Combustion, Siberian Branch of the Russian Academy of Sciences,
Ul. Institutskaya 3, Novosibirsk 630090 (Russia)
glebov@kinetics.nsc.ru
2 Novosibirsk State University,
Ul. Pirogova 2, Novosibirsk 630090 (Russia)
3 Research Institute of Physical and Organic Chemistry, Southern Federal University,
Pr. Stachki 194/2, Rostov-na-Donu 344104 (Russia)
Keywords: photochemistry, photochromism, quantum yield, spirooxazines, polycrystalline films
Pages: 599–603
Abstract
For three 6′-cyano-substituted spironaphthooxazines (SNO), photochromic properties were revealed in the films obtained from melts. Quantum yields were determined for the forward and reverse photochemical reactions. Unlike phenanthroline-containing spirooxazines, SNO polycrystals do not exhibit photochromic properties.
UDC 544-16; 615,31
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