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Time-resolved vibrational chemiluminescence: Rate constants for the reactions of F atoms with H2O and HCN, and for the relaxation of HF (v = 1) by H2O and HCN

✍ Scribed by Robert J. Frost; David S. Green; Martin K. Osborn; Ian W. M. Smith

Publisher: John Wiley and Sons
Year: 1986
Tongue: English
Weight: 638 KB
Volume: 18
Category: Article
ISSN: 0538-8066
DOI: 10.1002/kin.550180808

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✦ Synopsis

Rate constants have been determined at (298 * 4) K for the reactions:

and the relaxation processes:

(lb)

HF(u = 1) + HCN -HF(v = 0) + HCN Time-resolved HF(1,O) emission was observed following the photolysis of Fz with pulses from an excimer laser operating on XeCl ( h = 308 nm). Analysis of the emission traces gave first-order constants for reaction and relaxation, and their dependence on LH201 and [HCN] yielded: kl, = (1.3 t 0.1) x lo-" cm3 molecule." s -' klb = (1.0 t 0.1) x cm3 molecule^^'^^^ kZa = (3.7 2 0.4) x cm3 molecule.'s-' kPb = (3.4 _t 0.2) x 10-" om3 molecule-' s -'

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