Spectroscopic and theoretical study of vibrational spectra of hydrogen-bonded tropolone
✍ Scribed by Marek J. Wójcik; Marek Boczar; Marzena Stoma
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 259 KB
- Volume
- 73
- Category
- Article
- ISSN
- 0020-7608
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✦ Synopsis
Theoretical simulation of the bandshape and fine structure of the s stretching band is presented for tropolone-H and tropolone-D taking into account an Ž . adiabatic coupling between the high-frequency O᎐H D stretching and the low-frequency intra-and intermolecular O . . . O stretching modes, and linear and quadratic distortions of the potential energies for the low-frequency vibrations in the excited state of the Ž . O᎐H D stretching vibration. In order to determine the low-frequency vibrations, the experimental spectra of the polycrystalline tropolone in the far-infrared and the lowfrequency Raman range have been recorded for the first time. The experimental frequencies in the low-frequency region are compared with the results of the HFr6-31G** and Becke3LYPr6-31G** calculations carried out for the tropolone dimer.
📜 SIMILAR VOLUMES
The vibrational spectra of crystalline hydrogen iodide and its deuterated analogue in their low-temperature ordered phase were computed using a simple force constant model. The results are compared with experimental Raman and infrared data, and satisfactory agreement is obtained for the lattice mode