Vibrational spectra of diethylsulfoxide.
FT IR and Raman spectroscopic studies of pure diethylsulfoxide (DESO) in the liquid and in the solid states and its solutions in various solvents have been performed. Analysis of SO- and CH-stretching regions in a wide range of concentration shows that the bands may be fitted satisfactorily by considering seven components. In addition, fundamental frequencies have been assigned using ab initio calculations at the RHF/3-21G* levels. The results obtained confirm a viewpoint on a self-associative structure of DESO, and support the hypothesis of the existence of different types of intermolecular associates including both dipole-dipole and hydrogen bonding mechanisms.
Markarian
Shiraz A
SA
Department of Chemistry, Yerevan State University, 375049, Yerevan, Armenia. fizkol@ysu.am
Gabrielian
Liana S
LS
Bonora
Sergio
S
Fagnano
Concezio
C
D003451:Cryoprotective Agents / Q000737:chemistry; D004121:Dimethyl Sulfoxide / Q000737:chemistry; D006860:Hydrogen Bonding; D015394:Molecular Structure; D012996:Solutions; D012997:Solvents; D017550:Spectroscopy, Fourier Transform Infrared; D013059:Spectrum Analysis, Raman; D013454:Sulfoxides / Q000737:chemistry*
D003451:Cryoprotective Agents; D012996:Solutions; D012997:Solvents; D013454:Sulfoxides; C454662:diethyl sulfoxide; D004121:Dimethyl Sulfoxide