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IR spectrum of the closed form of indolinospironaphthooxazine |
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| Authors: | L L Gladkov Yu D Khamchukov I Yu Sychev A V Lyubimov |
| Institution: | 1.Higher State College of Communications,Minsk,Belarus;2.Institute of Technical Acoustics, National Academy of Sciences of Belarus,Vitebsk,Belarus;3.N. N. Semenov Institute of Chemical Physics, Russian Academy of Sciences,Moscow,Russia |
| Abstract: | IR absorption spectra of indolinospironaphthooxazine (ISNO) are presented. The geometric structure and normal coordinates of the ISNO molecule have been calculated using a quantum mechanical DFT method. The IR spectrum of ISNO in its original spiro form has been interpreted for the first time. Four normal modes in the range 800–1200 cm–1 with the largest amplitudes of Cspiro–O bond change are identified. The excited ISNO molecule spiro form may experience photoconversion to the merocyanine form through them. |
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