| Title: |
Vibrational overtone spectroscopy of jet-cooled methanol from 5000 to 14000 cm(-1) |
| Authors: |
Rueda, D; Boyarkin, OV; Rizzo, TR; Chirokolava, A; Perry, DS |
| Publication Year: |
2005 |
| Collection: |
Ecole Polytechnique Fédérale Lausanne (EPFL): Infoscience |
| Description: |
Spectra of jet-cooled methanol in the overtone and combination region from 5000 to, 14000 cm(-1) have been obtained by means of infrared laser-assisted photofragment spectroscopy. Many of the observed features are assigned to combination bands of the type nv(1) + v(6), nv(1) + v(8), and nv(1) + v(6) + v(8) (n = 1,2,3), where v(1) is the OH stretch, v(6) is the OH bend, and v(8) is the CO stretch. These bands show sharp torsion-rotation structure with features as narrow as 0.1 cm(-1). We also observe CH stretch overtones that are weaker than the OH containing combination bands and lack distinct torsion-rotation structure above V-CH = 2. The extent of observed structure on these bands allows us to place limits on the intramolecular vibrational energy redistribution decay rates in the upper vibrational states. We report a global fit of the observed band centers to a simple expression involving low-order anharmonicity constants. (C) 2005 American Institute of Physics. ; LCPM |
| Document Type: |
article in journal/newspaper |
| Language: |
unknown |
| Relation: |
The Journal of Chemical Physics; https://infoscience.epfl.ch/handle/20.500.14299/221363; WOS:000226807000030 |
| DOI: |
10.1063/1.1833353 |
| Availability: |
https://doi.org/10.1063/1.1833353; https://infoscience.epfl.ch/handle/20.500.14299/221363; https://hdl.handle.net/20.500.14299/221363 |
| Accession Number: |
edsbas.2C0BC7CC |
| Database: |
BASE |