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Photodissociation of SO3 at 193 nm investigated by photofragment translational spectroscopy

✍ Scribed by M.-A. Thelen; J.Robert Huber

Publisher: Elsevier Science
Year: 1995
Tongue: English
Weight: 507 KB
Volume: 236
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(95)00285-c

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✦ Synopsis

We have generated a cold beam of the highly corrosive sulfur trioxide SO3 and have studied its photodissociation at 193 nm by photofragment translational spectroscopy, The spin-allowed process SO3( g 'A{) + hv --+ SOs( ji 'Al ) + 0( 'D) was found to be the primary dissociation channel. A part of the hot SOa fragments emerging from this decay undergoes secondary photodissociation SOz( x 'Al ) + hv + SO( g 3X-) + 0( 3P), No evidence was found for the occurrence of the energetically feasible pathway SO3(g'A{) + hv + SO(3C-) + 0~(~8,).

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