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Vibrational state dependence of the Ã, state lifetime of HONO

✍ Scribed by J.H. Shan; S.J. Wategaonkar; R. Vasudev

Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
374 KB
Volume
158
Category
Article
ISSN
0009-2614

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✦ Synopsis

Lower limits to the subpicosecond lifetimes of specific vibrational levels of the quasistable A state of HONO are obtained through photodissociation experiments in a supersonic jet. Laser-induced fluorescence of the OH fragment ejected by the A state of HONO is used as a probe for A-x absorption of the parent. The excited-state lifetime, estimated through A-x absorption widths measured by scanning the photodissociation wavelength, shows a dependence on the number of quanta of the optically accessible -N=O stretching ( v2) vibration and is interpreted in terms of the topology of the A state surface.

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