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Solvatochromic Polarity Parameters of Carbon Dioxide in the Sub- and Supercritical State

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Abstract

The Kamlet–Taft solvatochromic polarity parameters are determined for carbon dioxide in sub- and supercritical (SC) states at 22, 40, 60, and 80°C and 10.0–30.0 MPa. The solvatochromic indicators used to determine the parameters are 2,6-diphenyl-4-(2,4,6-triphenyl-1-pyridino)-phenolate (Reichardt’s betaine) and benzophenone for ET and 4-nitrophenol and 4-nitroanisole for b and p, respectively. It is established that the parameters characterizing the polarity and donor–acceptor properties of CO2 are practically independent of the state parameters, as these properties are governed by the structure of a molecule.

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ACKNOWLEDGMENTS

This study was performed on the equipment of the Shared Facilities Center of the Scientific Association “Arctic” of Lomonosov Northern (Arctic) Federal University.

Funding

This study was financially supported by the Russian Foundation for Basic Research (grant no. 18-29-06002-mk-2019).

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Authors and Affiliations

  1. Lomonosov Northern (Arctic) Federal University, 163002, Arkhangelsk, Russia

    T. E. Skrebets, A. D. Ivakhnov, K. S. Sadkova & K. G. Bogolitsyn

Authors
  1. T. E. Skrebets
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  2. A. D. Ivakhnov
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  3. K. S. Sadkova
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  4. K. G. Bogolitsyn
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Corresponding author

Correspondence to T. E. Skrebets.

Additional information

Translated by E. Glushachenkova

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Skrebets, T.E., Ivakhnov, A.D., Sadkova, K.S. et al. Solvatochromic Polarity Parameters of Carbon Dioxide in the Sub- and Supercritical State. Russ. J. Phys. Chem. B 15, 1142–1145 (2021). https://doi.org/10.1134/S1990793121070149

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  • DOI: https://doi.org/10.1134/S1990793121070149

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