TY  - JOUR
  - Venables, D. S.,Chiu, A.,Schmuttenmaer, C. A.
  - 2000
  - August
  - Journal of Chemical Physics
  - Structure and dynamics of nonaqueous mixtures of dipolar liquids. I. Infrared and far-infrared spectroscopy
  - Validated
  - ()
  - 113
  - 8
  - 3243
  - 3248
  - Mixtures of acetone/methanol, acetonitrile/methanol, and acetone/acetonitrile over their whole composition range were studied with infrared and far-infrared (THz) spectroscopy. Experimental spectra of all mixtures were obtained below 120 cm(-1), and spectra of methanolic mixtures were also measured from 400 to 1000 cm(-1). The mixtures display ideal absorption spectra below 120 cm(-1), contrasting with significant nonidealities in the absorption of aqueous mixtures in the same frequency range. Dramatic changes as a function of composition were found in methanolic mixtures at higher frequencies. The high frequency librational band of methanol, centered at 670 cm(-1), shifts to substantially lower frequencies upon dilution, indicating marked changes in the librational motion of the hydroxyl hydrogen of methanol. This band is a sensitive probe of the hydrogen bonding environment experienced by methanol molecules.
  - 0021-9606
  - 10.1063/1.1287145
DA  - 2000/08
ER  - 

@article{V18609293,
   = {Venables,  D. S. and Chiu,  A. and Schmuttenmaer,  C. A. },
   = {2000},
   = {August},
   = {Journal of Chemical Physics},
   = {Structure and dynamics of nonaqueous mixtures of dipolar liquids. I. Infrared and far-infrared spectroscopy},
   = {Validated},
   = {()},
   = {113},
   = {8},
  pages = {3243--3248},
   = {{Mixtures of acetone/methanol, acetonitrile/methanol, and acetone/acetonitrile over their whole composition range were studied with infrared and far-infrared (THz) spectroscopy. Experimental spectra of all mixtures were obtained below 120 cm(-1), and spectra of methanolic mixtures were also measured from 400 to 1000 cm(-1). The mixtures display ideal absorption spectra below 120 cm(-1), contrasting with significant nonidealities in the absorption of aqueous mixtures in the same frequency range. Dramatic changes as a function of composition were found in methanolic mixtures at higher frequencies. The high frequency librational band of methanol, centered at 670 cm(-1), shifts to substantially lower frequencies upon dilution, indicating marked changes in the librational motion of the hydroxyl hydrogen of methanol. This band is a sensitive probe of the hydrogen bonding environment experienced by methanol molecules.}},
  issn = {0021-9606},
   = {10.1063/1.1287145},
  source = {IRIS}
}