Abstract
Infrared spectra of 2-hydroxypyridine (2HP) and its hydrogen-bonded clusters with water and methanol have been observed by IR-UV double-resonance spectroscopy. The OH stretching vibrations of the 2-HP site as well as either the water or methanol site were observed. The spectra were compared with those of the corresponding clusters of 2-pyridone (2PY), which have been reported in J. Chem. Phys. 1999, 110, 8397. The OH stretching vibration of bare 2HP was observed at 3600 cm-1, representing a clear difference from the NH stretching vibration of 2PY (3441 cm-1). On the other hand, the IR spectra of the 2HP-water and -methanol clusters were found to be very similar to those of the corresponding clusters of 2PY, indicating a solvation-mediated tautomerization between 2HP and 2PY. The cluster structures were examined using ab initio molecular orbital calculations.
| Original language | English |
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| Pages (from-to) | 3475-3480 |
| Number of pages | 6 |
| Journal | Journal of Physical Chemistry A |
| Volume | 105 |
| Issue number | 14 |
| DOIs | |
| Publication status | Published - 2001 Apr 12 |
ASJC Scopus subject areas
- Physical and Theoretical Chemistry