Concentration-Related Changes in the Spectral Characteristics of the Libration Band of Liquid Water in Acetonitrile and Acetone Solutions
Acetonitrile is highly soluble in water, in contrast to other nitriles. All the molecular parameters of acetonitrile (bond lengths, force constants, dipole moments, etc.) are well known . Spectroscopic investigation of aqueous acetonitrile solutions is therefore a convenient procedure for studying the spectral characteristics of water. In particular, the acetonitrile absorption band corresponding to the valence vibration of the C ≡ N triple bond is very sensitive to changes in temperature and solvent properties. The structural characteristics of liquid water are manifested in the anomalous behavior of this band in aqueous solutions [2, 3].
KeywordsLiquid Water Heavy Water Acetone Solution Valence Vibration Libration Spectrum
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