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Photofragment yield spectra of methyl nitrite in a supersonic jet

✍ Scribed by E. Kades; M. Rösslein; J.Robert Huber

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
499 KB
Volume
209
Category
Article
ISSN
0009-2614

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✦ Synopsis

Photofragment yield spectra of jet-cooled CH,ONO are measured over the first few resonances of the SltSo absorption by monitoring the NO fragments via selected rotational levels in each of the four sublevels F, (A', A") and F*(A', A") of the vibrational states v"=O, 1 and 2. Based on spectral features, the 0: transitions of the anti-and syn-isomers were assigned to the bands at 256OOk 30 and 26 160 f 30 cm-', respectively, supporting, in combination with vibrational state distributions, the dominance of a vibrationally non-adiabatic over an adiabatic dissociation process. The observed linewidth of the vibronic absorption bands of x 500 cm-', which is essentially unchanged from that at room temperature, remains unexplained.

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