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- W2095402023 abstract "Abstract Spectral distribution curves of the absorption coefficients of vibrational spectra of two poly(phenylene vinylene) conformations are calculated. Vibration dynamics are analyzed and absorption bands sensitive to the polymerization are revealed. Histograms of electronic states for isolated polymeric chains are calculated with the help of the Huckel extended method. The values of force constants and of electro-optical parameters found previously are shown to be convenient for reasonably accurate description of the IR spectra of the polymer; these show that at polymerization the electronic structure of isolated structural elements stays constant. A feeble influence of the intermolecular interactions on the spectra of basic chains is discovered, that makes it possible to use an approximation to examine these chains independently of their environment. The histograms of the electronic states show that these polymers can have semiconductor features." @default.
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- W2095402023 date "1990-01-01" @default.
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- W2095402023 title "Calculation and interpretation of infrared spectra of poly(phenylene vinylene): Analysis of the character of chemical bonds and conformational states" @default.
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- W2095402023 doi "https://doi.org/10.1016/0022-2860(90)80332-e" @default.
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