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Radiative lifetime and quenching of the A 2A1 state of the CH3O radical.
- Source :
-
Journal of Chemical Physics . 1/1/1988, Vol. 88 Issue 1, p171. 5p. - Publication Year :
- 1988
-
Abstract
- The laser-induced fluorescence technique has been employed to study the first excited electronic state A 2A1 of CH3O. Vibrational levels v’3 =0–7 of the A state were excited and fluorescence decay rates were measured. Compared to a value 2.2±0.2 μs at v3=0, a significant decrease of decay rate was found at 277.6 nm (0.89 μs, v’3=7). Excitation to higher levels further reduced the lifetime. The predissociation threshold was estimated to be slightly above 276 nm (36 220 cm-1). The electronic quenching rates of the A state (v’=0–2) by CH3OH, O2, NO2, and N2 have also been determined and are compared with those of OH in the A state. [ABSTRACT FROM AUTHOR]
- Subjects :
- *LASER photochemistry
*FLUORESCENCE
*METHYL ether
Subjects
Details
- Language :
- English
- ISSN :
- 00219606
- Volume :
- 88
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Journal of Chemical Physics
- Publication Type :
- Academic Journal
- Accession number :
- 7608023
- Full Text :
- https://doi.org/10.1063/1.454633