Ascorbic acid vibrational spectra in sulfoxide solvents |
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| Authors: | A I Zatikyan E A Kazoyan S Bonora Sh A Markaryan |
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| Institution: | (1) Yerevan State University, 1 Alex Manoogian St., Yerevan, 375049, Armenia;(2) Bologna University, Bologna, Italy |
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| Abstract: | Ascorbic acid in dimethyl-and diethylsulfoxide solutions has been studied using vibrational (Fourier transform IR and Raman)
spectroscopy. Noticeable changes observed in the range of S=O-group vibrations can be explained by the presence of a hydrogen
bond between ascorbic acid and sulfoxides. Various types of ascorbic acid/sulfoxide hydrogen-bonded complexes were revealed
based on spectral analysis data. The results showed that the ascorbic acid/dimethylsulfoxide system has predominantly one
type of complexes whereas the ascorbic acid/diethylsulfoxide system can contain three types of complexes.
Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 75, No. 5, pp. 653–658, September–October, 2008. |
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| Keywords: | IR and Raman Fourier spectroscopy ascorbic acid dimethylsulfoxide diethylsulfoxide |
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