The temperature dependence of the νs(OH) frequency of self-associated methanol in solution
- 1 January 1980
- journal article
- research article
- Published by Taylor & Francis in Molecular Physics
- Vol. 39 (1) , 163-174
- https://doi.org/10.1080/00268978000100131
Abstract
The first moment M 1(H) of the v s(OH) absorption band of self-associated CD3OH in freon 11 and the corresponding first moment M 1(D) of self-associated CH3OD have been measured at 10 K intervals between 160 K and 280 K. The regression of the moments on coth (ħω2/2kT) is close to linear, with correlation coefficients of 0·998 for H and 0·999 for D. The ratio M 1(H)/M 1(D) is independent of temperature. The frequency shifts with temperature are much too great to be explicable solely in terms of thermal expansion of the hydrogen bond. We argue that a quartic anharmonic coupling between the νs(OH) and νσ(OH … O) modes is largely responsible for the effect.Keywords
This publication has 13 references indexed in Scilit:
- H-bonds in acetic acid crystals: Influence of temperature and of isotopic dilution on OH(O-D) stretching BANDSChemical Physics, 1979
- Transmission window in the νs (OD) band of hydrogen-bonded monodeuteromethanolChemical Physics Letters, 1979
- Effect of pressure on the Raman spectrum of iceNature, 1978
- Hydrogen bond dynamics in solutionNature, 1978
- Vibrational relaxation of hydrogen-bonded species in solution. Il. Analysis of vs(XH) absorption bandsChemical Physics, 1978
- Vibrational relaxation of hydrogen-bonded species in solution. I. TheoryChemical Physics, 1978
- A theory of a broadening of the infrared absorption spectra of hydrogen-bonded species III. The kinematic and electronic coupling mechanismsPhilosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1977
- A new method of measuring the hydrogen bond stretching frequency νσ of a complex in solutionNature, 1975
- A low temperature infrared study of the band-width and frequency in self-associated alcoholsChemical Physics Letters, 1971
- Infrared Spectra of H-Bonded SystemsThe Journal of Chemical Physics, 1968