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Rotational and vibrational relaxation rate constants for N2+(B2Σ, ν' = 0, N') colliding with He

✍ Scribed by A. Plain; J. Jolly

Publisher
Elsevier Science
Year
1987
Tongue
English
Weight
363 KB
Volume
135
Category
Article
ISSN
0009-2614

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✦ Synopsis

A tunable dye laser was used to populate selectively a single rotational-vibrational state of N 2 ( B 'E , u' = 0, N' = O-l 5 ) . The population changes induced by collisions with He were determined using time-resolved spectroscopy in a flowing afterglow experiment. Total rotational transfer rates form the pumped level were found to vary with N' between 1.6 and 2.5 x lo-"' cm3 s-l. The vibrational quenching of N: (B, v' =O) by He was also determined and found to be as low as 8.0X lo-l2 cm3 s-l.

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