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Laser measurements of the quenching and reaction of CN radicals with BrCN and CICN

✍ Scribed by J.F. Caballero; William Jackson; Xuechu Li; N. Sayah

Publisher: Elsevier Science
Year: 1989
Tongue: English
Weight: 350 KB
Volume: 47
Category: Article
ISSN: 1010-6030
DOI: 10.1016/1010-6030(89)85004-x

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✦ Synopsis

The laser-induced fluorescence (LIF) technique was used to measure the rate at which CN radicals (V = 0,1,2) are removed in collisions with BrCN and ClCN. The rate constants are (9 * 1) X lo-l4 cm3 molecule-' s-i for BrCN and (2.1 +_ 0.3) X lo-i3 cm3 molecule-' s-l for ClCN. They are independent of the CN vibrational energy content. It is therefore concluded that chemical reaction dominates the removal and that the upper limit for vibrational quenching of both species is (1 -2) X lo-i4 cm3 molecule-' s-l.

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