✦ LIBER ✦

Time-resolved tunable diode laser detection of products of CF2HCl IRMPD: A linestrength measurement for CF2

✍ Scribed by J.J. Orlando; J. Reid; D.R. Smith

Publisher: Elsevier Science
Year: 1987
Tongue: English
Weight: 440 KB
Volume: 141
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(87)85053-4

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✦ Synopsis

Tunable diode laser transient detection of CF2, CrF,, and HCI following infrared multiphoton dissociation (IRMPD) of CF,HCI has been achieved. Quantification of the HCI and CZF4 leads to the calculation of an infrared absorption linestrength and the v, bandstrength for CFJ 2 'A, ). In addition, the rate coefficient for recombination of CFZ was found to be (1.4 f 0.4) x 10"' cm3 mol-' s-'.

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Difluorocarbene (CF,) has been observed by time-resolved diode laser absorption spectroscopy following excimer-laser photolysis of C,F,. A band strength of 2.8 x 1 O-i' cm molecule-' for the u3 band may be inferred from the absorption measurements, assummg a quantum yreld &\* = 2 from C,F, photodiss