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Hydrogen bonding in dimethylsulphoxide‐proton donor interactions: A Raman and infrared study of the DMSO‐HCI system
Author(s) -
Bertoluzza A.,
Bonora S.,
Fini G.,
Battaglia M. A.,
Monti P.
Publication year - 1981
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.1250110603
Subject(s) - adduct , chemistry , raman spectroscopy , hydrogen bond , protonation , infrared spectroscopy , infrared , deuterium , hydrogen chloride , ion , inorganic chemistry , medicinal chemistry , organic chemistry , molecule , physics , quantum mechanics , optics
Dimethylsulphoxide (DMSO)‐hydrogen chloride interactions have been studied by means of Raman and infrared spectroscopy both in solid 1:1 adducts and in liquid mixtures with DMSO:HCl molar ratios >2. The deuterated analogue solid 1:1 (DMSO‐ d 6 )‐DCl was also prepared and studied. Vibrational data suggest the presence of a (DMSOHOSMD) + cation with strong (OHO) + hydrogen bonds both in the solid adducts and in the liquid mixtures. In the solid adducts the (CIHCl) − anion may be present. A relation between some biological properties of DMSO and its protonation is suggested.