Author： Zoidis E. Yarwood J. Danten Y. Besnard M.
Publisher： Taylor & Francis Ltd
ISSN： 1362-3028
Source： Molecular Physics, Vol.85, Iss.2, 1995-06, pp. : 373-383
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Abstract
Raman (isotropic) scattering for the v 1 and v 12 modes of pyridine in binary solutions with water have been studied over the full concentration range. Band intensity data, based on a fit to three Lorentzian bands, are consistent, at least up to x W ≅ 0·6, with an equilibrium model which includes three different pyridine/water complexes Pyr 2 ·W, Pyr·W and Pyr·W 2 , and which includes dimeric and trimeric water aggregates. The likely uniqueness of this interpretation is discussed in the light of recent mass spectrometric and infrared evidence that, especially at higher water concentrations, the binary mixture is more likely to contain, on the time scale of the experiment, a networked distribution of hydrogen-bonded interactions rather than a set of discrete ‘complexes'.
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By Zoidis E. Yarwood Jack Danten Y. Besnard M.
Molecular Physics, Vol. 85, Iss. 2, 1995-06 ,pp. :
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