Abstract
The high-precision structural measurements of several methanol isotopes described in paper I are Fourier transformed to obtain their corresponding pair correlation functions. At room temperature we have observed a structural isotopic difference depending on the methanol isotopes used ranging between 2 and 5% at intramolecular distances and between 5 and 8% at intermolecular distances relative to the magnitude of (g(r) - 1) for CH3OH. For methanol at -80°C, a maximum effect of 20% has been observed. All these effects may be explained in terms of changes in ground state librational motions and perturbations to the hydrogen bonding structure. The effects are compared with structural changes caused by temperature shifts and are shown to agree with the reciprocal space studies in paper I.
Original language | English |
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Pages (from-to) | 11421-11434 |
Number of pages | 14 |
Journal | Journal of Physics Condensed Matter |
Volume | 13 |
Issue number | 50 |
DOIs | |
State | Published - Dec 17 2001 |
Externally published | Yes |