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Synthesis and Physicochemical Properties of New Chalcones Containing a 2-Chloroimidazo[1,2-a]pyridine Fragment

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Abstract

New chalcones containing a 2-chloroimidazo[1,2-a]pyridine fragment have been synthesized, and their optical properties have been studied. The Stokes shifts, forbidden band gap widths, molar absorption coefficients, and fluorescence quantum yields have been determined on the basis of their absorption and emission spectra. Introduction of an additional thiophene fragment into the chalcone molecules produced an increase of the Stokes shift, red shift of the emission maximum, and sharp increase of the quantum yield (up to 22%). The synthesized chalcones showed high thermal stability and good film-forming properties, and films obtained therefrom exhibited an ordered structure.

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Notes

  1. Hereinafter, “Cz” refers to the carbazole fragment, “Th” refers to the thiophene fragment, and “IP” refers to the imidazopyridine fragment.

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Funding

This study was performed under financial support by the government of Perm Krai.

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Authors and Affiliations

  1. Institute of Technical Chemistry, Perm Federal Research Center, Ural Branch, Russian Academy of Sciences, 614013, Perm, Russia

    A. N. Chukhlantseva & G. G. Abashev

  2. Perm State National Research University, 614900, Perm, Russia

    A. N. Chukhlantseva, D. A. Ermolov, I. V. Lunegov, I. G. Mokrushin, E. V. Shklyaeva & G. G. Abashev

Authors
  1. A. N. Chukhlantseva
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  2. D. A. Ermolov
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  3. I. V. Lunegov
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  4. I. G. Mokrushin
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  5. E. V. Shklyaeva
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  6. G. G. Abashev
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Corresponding author

Correspondence to G. G. Abashev.

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Additional information

Translated from Zhurnal Organicheskoi Khimii, 2021, Vol. 57, No. 12, pp. 1717–1726 https://doi.org/10.31857/S0514749221120065.

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Chukhlantseva, A.N., Ermolov, D.A., Lunegov, I.V. et al. Synthesis and Physicochemical Properties of New Chalcones Containing a 2-Chloroimidazo[1,2-a]pyridine Fragment. Russ J Org Chem 57, 1940–1947 (2021). https://doi.org/10.1134/S107042802112006X

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