Benzindoles XII. Spectra and three-dimensional structures of [6,7]- and [4,5]benzoskatolideneacetones |
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| Authors: | L. B. Shagalov T. M. Ivanova T. A. Babushkina V. N. Eraksina A. M. Vasil'ev N. N. Suvorov |
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| Affiliation: | 1. D. I. Mendeleev Moscow Chemical and Technological Institute, Institute of Biophysics, Ministry of Public Health of the USSR, Moscow
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| Abstract: | It was found by means of their ER, UV, and PMR spectra that [6,7]benzoskatolideneacetones have a side chain in the trans-s-cis form, whereas the [4, 5] isomers have a side chain in the cis-s-cis form. It was concluded from the integral intensities of the bands of the vibrations of the double bond (AC=C)) and the parameters of the UV spectra that the investigated molecules have a planar structure. The AC=C) integral intensities in the IR spectra exceed the previously observed values and, in the case of [6,7]benzoskatolideneacetones, reach ～6· 104 mole?1liter·cm?2. |
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