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Correlations among the Raman spectra and the conformational compositions of ethylene glycol, 1,2- and 1,3-propylene glycolsстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 29 сентября 2021 г.
- Авторы: Kuzmin V.V., Novikov V.S., Sagitova E.A., Ustynyuk L.Yu, Prokhorov K.A., Ivchenko P.V., Nikolaeva G.Yu
- Журнал: Journal of Molecular Structure
- Год издания: 2021
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Номер статьи: 130847
- DOI: 10.1016/j.molstruc.2021.130847
- Аннотация: Raman spectra of liquid ethylene glycol (EG), 1,2-propylene glycol (1,2-PG) and 1,3-propylene glycol (1,3-PG) were analyzed in terms of the conformational composition of the molecules. The analysis was based on comparison of the experimental spectra with the results of the density functional theory (DFT) calculations of the structure, energy and Raman spectra for 10 conformations of EG molecule, 27 conformations of 1,2-PG molecule and 25 conformations of 1,3-PG molecule. The gas-phase approximation calculations well describe the main features of the experimental spectra of the liquid substances in the region 600 – 1600 cm−1. Calculations for clusters of EG molecules showed that an increase in the number of molecules in a cluster leads to significant improvement of the agreement between the calculated and experimental spectra. The molecular conformations in the clusters are strongly distorted compared to the gas-phase approximation results. Thus, the intermolecular interactions influence significantly the conformational order and the Raman spectra of the diols.
- Добавил в систему: Устынюк Лейла Юрьевна