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Solvatochromism of Heteroaromatic Compounds: VI. Comparison of the Empirical and Theoretical Approaches to Description of Solvatochromism in Nonspecific Solvation of Nitropyrazoles

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Abstract

The effect of nonspecific solvation on the long-wave absorption band in the UV spectra of isomeric nitropyrazoles was studied. The aprotic inert and aprotic protophilic solvents exert different spectroscopic effects. In the former solvents, the solvatochromism is mainly governed by orientation interactions, and in the latter solvents, along with the orientation interactions, the UV spectrum is appreciably influenced by the induction, polarization, and dispersion interactions, which is due to the presence of readily polarizable nonbonding electron pairs and/or a pi-electron system in molecules of such solvents.

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  1. Favorskii Institute of Chemistry, Siberian Division, Russian Academy of Sciences, Irkutsk, Russia

    A. I. Vokin, A. M. Shulunova, T. N. Aksamentova, L. A. Es'kova, V. N. Elokhina, V. A. Lopyrev & V. K. Turchaninov

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  1. A. I. Vokin
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  2. A. M. Shulunova
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  3. T. N. Aksamentova
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  4. L. A. Es'kova
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  5. V. N. Elokhina
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  6. V. A. Lopyrev
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  7. V. K. Turchaninov
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Vokin, A.I., Shulunova, A.M., Aksamentova, T.N. et al. Solvatochromism of Heteroaromatic Compounds: VI. Comparison of the Empirical and Theoretical Approaches to Description of Solvatochromism in Nonspecific Solvation of Nitropyrazoles. Russian Journal of General Chemistry 71, 137–142 (2001). https://doi.org/10.1023/A:1012358212623

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