Using vibrational (Fourier transform IR and Raman) spectroscopy, ascorbic acid/dimethyl- and diethylsulfoxide solutions have been studied. Noticeable changes obwerved in the range of S=O-groups vibrations can be explained by the presence of hydrogen bond between ascorbic acid and sulfoxides. Based on spectral analysis data, various types of ascorbic acid/sulfoxide hydrogen-bonded complexes were revealed. As the results of studies show, the ascorbic acid/dimethylsulfoxide system has predominantly complexes of one type whereas the ascorbic acid/diethylsulfoxide system can contain complexes of three types.

Ascorbic acid vibrational spectra in sulfoxide solutions.

BONORA, SERGIO;
2008

Abstract

Using vibrational (Fourier transform IR and Raman) spectroscopy, ascorbic acid/dimethyl- and diethylsulfoxide solutions have been studied. Noticeable changes obwerved in the range of S=O-groups vibrations can be explained by the presence of hydrogen bond between ascorbic acid and sulfoxides. Based on spectral analysis data, various types of ascorbic acid/sulfoxide hydrogen-bonded complexes were revealed. As the results of studies show, the ascorbic acid/dimethylsulfoxide system has predominantly complexes of one type whereas the ascorbic acid/diethylsulfoxide system can contain complexes of three types.
APPLIED SPECTROSCOPY
A.I. Zatikyan; E.A. Kazoyan; S. Bonora; S.A. Markarian
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11585/65403
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