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Vibrational predissociation and electronic quenching dynamics of OHN2 (A 2Σ+)

✍ Scribed by Leanna C. Giancarlo; Marsha I. Lester

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
758 KB
Volume
240
Category
Article
ISSN
0009-2614

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✦ Synopsis

The vibrational predissociation and electronic quenching dynamics of weakly bound OH-N z (A 2X +) complexes have been examined using laser-induced fluorescence and dispersed fluorescence. We find that predissociation occurs on a ~< 1 ps timescale for complexes prepared in levels correlating with OH A2X+(v '= 1)+ N 2 X lX+(v"= 0). Furthermore, we suggest a simple kinetic analysis which describes the removal of population and lack of fluorescence from OH-N 2 levels bound by the OH A 2X +(v, = 0) + N 2 X 1~ +(v,, = 0) potential energy surface. This mechanism implies that nonadiabatic decay, i.e. quenching, may be important for these complexes.

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