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Lifetimes of the vibronic Ã2A1 states of H2S+

✍ Scribed by G.R. Möhlmann; F.J. de Heer

Publisher
Elsevier Science
Year
1975
Tongue
English
Weight
332 KB
Volume
36
Category
Article
ISSN
0009-2614

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✦ Synopsis

Liietimes have been measured for the 2 and n vibronic x 'A1 stites of ti2.V by studying the deczy cures of the i 'A1 (0, vi, 0) -2 '91 (0, I&', 0) emission bands. The vibronic x *Al states arc produced via escitrtion of H;?S molecules by 150 eV electrons. The C sublevels 1 Q u> =G 7 and the 11 sublevels 3 c u; ;(r 6 hwe been considered. Predissociation occurs in the r sublevels for U' z 2 7 and in the n sublevels for u; 2 6. The obtained radiative lifetimes for the non-prcdissociatcd Z and II sublevels are around 1.2(*0.4) X 10d sand 5.6(*0.5) 2: lo6 lI(O,6,0) levels the corresponding lifetimes are 2.3(+0.3) X 10d s respectively. For the predissocinted X(0, 7,0) and s and 1.6(%0.3)

x 10% s respectively. The rate constant for collisional deactivation (quenching) of the vibronic x 'A1 states by H2S molecules ~2s found to equal X3(*0.3) X 10") cm3 mol-' s-'

'Volume'36, r.u@cr 3

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