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Conformational Equilibria of a Thiadiazole Derivative in Solvents of Different Polarities: an NMR Study

  • ON THE 90th ANNIVERSARY OF THE BIRTH OF G.A. KRESTOV
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Abstract

The spatial structure of the 1-[5-(4-methoxyphenylamino)-1,2,4-thiadiazol-3-yl]-propan-2-ol molecule is analyzed by the methods of nuclear magnetic resonance (NMR) spectroscopy and quantum chemical calculations using the density functional theory. The ratio of probable conformers of the compound in chloroform-d1 and dimethylsulfoxide-d6 is found. Conformational inversion of the compound molecules is observed upon changing the solvent.

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ACKNOWLEDGMENTS

Our NMR experiments were performed on the equipment of the Krestov Institute of Solution Chemistry, Russian Academy of Sciences (http://www.ckp-rf.ru/usu/503933/).

Funding

This work was supported by the RF Ministry of Higher Education and Science, project nos. 01201260481 and 0120095082; the Russian Foundation for Basic Research, project nos. 18-29-06008 and 20-43-370011; and the RF Presidential Grant Council, project no. МK-662.2021.1.3.

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Correspondence to I. A. Khodov.

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Translated by A. Tulyabaev

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Khodov, I.A., Belov, K.V., Krestyaninov, M.A. et al. Conformational Equilibria of a Thiadiazole Derivative in Solvents of Different Polarities: an NMR Study. Russ. J. Phys. Chem. 96, 765–772 (2022). https://doi.org/10.1134/S0036024422040148

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  • DOI: https://doi.org/10.1134/S0036024422040148

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