Study of hydrogen-bonded complexes in aqueous solutions of acetylacetone using vibrational spectroscopy and ab initio calculations
- Authors: Jumabaev A.A.1, Hushvaktov H.A.1, Absanov A.A.1, Khudaykulov B.B.1, Holikulov U.A.1, Norkulov A.M.1
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Affiliations:
- Samarkand State University
- Issue: Vol 88, No 10 (2024)
- Pages: 1663-1670
- Section: Microfluidics and ferrohydrodynamics of magnetic colloids
- URL: https://rjsvd.com/0367-6765/article/view/681740
- DOI: https://doi.org/10.31857/S0367676524100251
- EDN: https://elibrary.ru/FNJCQM
- ID: 681740
Cite item
Abstract
The Raman scattering and FT-IR absorption spectra of pure acetylacetone and its aqueous solutions at room temperature and atmospheric pressure were studied. The results of experiments and calculations show that with a decrease in the amount of acetylacetone in the solution, a red shift of the C=O stretching vibration band and a blue shift of the C-H stretching vibration band are observed. A potential energy distribution analysis was carried out for the monomeric molecule of the keto form of acetylacetone. The calculated and observed vibration frequencies are in good agreement. Calculations show that acetylacetone forms molecular clusters with water molecules in the form of C=O…H and C-H…O hydrogen bonds, which leads to a change in the shape of the spectral bands.
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About the authors
A. A. Jumabaev
Samarkand State University
Author for correspondence.
Email: jumabaev2@rambler.ru
Department of Optics and Spectroscopy
Uzbekistan, Samarkand, 140104H. A. Hushvaktov
Samarkand State University
Email: jumabaev2@rambler.ru
Department of Optics and Spectroscopy
Uzbekistan, Samarkand, 140104A. A. Absanov
Samarkand State University
Email: jumabaev2@rambler.ru
Department of Optics and Spectroscopy
Uzbekistan, Samarkand, 140104B. B. Khudaykulov
Samarkand State University
Email: jumabaev2@rambler.ru
Department of Optics and Spectroscopy
Uzbekistan, Samarkand, 140104U. A. Holikulov
Samarkand State University
Email: jumabaev2@rambler.ru
Department of Optics and Spectroscopy
Uzbekistan, Samarkand, 140104A. M. Norkulov
Samarkand State University
Email: jumabaev2@rambler.ru
Department of Optics and Spectroscopy
Uzbekistan, Samarkand, 140104References
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