Photo-and thermochromic spiranes 31.* Structure and photochromic properties of functionalized benzoxazine spiropyrans |
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| Authors: | M. B. Lukyanova V. V. Tkachev B. S. Lukyanov S. M. Aldoshin A. N. Utenyshev S. O. Bezuglyi V. I. Minkin V. A. Kogan |
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| Affiliation: | (1) Institute of Physical and Organic Chemistry, Southern Federal University, Rostov-on-the-Don, 344090, Russia;(2) Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, 142432, Moscow Region, Russia;(3) Southern Scientific Center, Russian Academy of Sciences, Rostov-on-the-Don, 344006, Russia;(4) Chemical Faculty, Southern Federal University, Rostov-on-the-Don, 344090, Russia |
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| Abstract: | An X-ray diffraction study gave the structure of a 4-oxohydro-2H-1,3-benzoxazine spiropyran with molecular formula C28H25N3O7, in which the π-electron-withdrawing formyl group is replaced with a chelatophoric hydrazine fragment containing a methoxy group. The structural parameters of this spiropyran were determined and compared with the data for similar spiropyrans. The photochromic properties of this compound in acetonitrile were studied in the presence of zinc ions. Dedicated to Professor A. F. Prozharskii on the occasion of his 70th jubilee. * For Communication 30 see [1]. Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 11, pp. 1699–1706, November, 2008. |
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| Keywords: | benzoxazines spiropyrans X-ray diffraction structural analysis photochromic properties |
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