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Photodissociation of CF2BrCl at 193 nm investigated by photofragment translational spectroscopy

✍ Scribed by G. Baum; J.Robert Huber

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 501 KB
Volume: 213
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(93)89138-8

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✦ Synopsis

The photodissociation of the halon CF&Cl has been studied by the time-of-flight crossed-laser molecular-beam method at 193 nm. Two primary decays are operative, the dominant one yielding CFsCl+Br (DA') = 63.5 f 3 kcaJ/mol) with Br( 'P1,s): Br(*P,,,) ~2: I and the second one CF,Br+CI (06s) =78 &4 kcal/mol). The large internal energy release gives rise to efftcient (250%) secondarydecaysCF2CI-rCF2+Cl (D6')=51,5~3kcal/mol) andCF,Br-CF,+Br (D65'=37+5kcal/mol)andallows assessment of the pertinent dissociation energies Ds.

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