Vibronic properties of 2-azaanthracene and its derivatives |
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Authors: | V P Zvolinskii N I Nizhegorodov V V Nikiforov V V Dorogov A N Gusarov |
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Institution: | (1) Patrice Lumumba International Friendship University, USSR |
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Abstract: | We report an experimental and theoretical (PPP method) study of the UV absorption spectra of 2-azaanthracene and four of its methyl-substituted derivatives. We find that the p bands of these compounds consist of two different vibronic
* bands. Our experimental and theoretical results suggest a rule for evaluating the effect of methyl groups on
* transition energies as a function of the charge on the atoms. We interpret the reasons for the different effects of a polar solvent and hydrogen bonding on the
* bands of these compounds.Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 6, pp. 7–15, June, 1977. |
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