Photodissociation of sulfur dioxide: The Ẽ state revisited

Kenneth Knappenberger, A. W. Castleman

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

The pump-probe technique has been employed to study the photodissociation processes of sulfur dioxide (SO2). The SO2+ transient has been fit to a biexponential with decay times of 230 ± 9 fs and 8 ± 4 ps. The growth of 32SO+ was determined to be 225 ± 10 fs with a decay of 373 ± 27 fs. The response of the isotope 34SO2+ was also fit to biexponential decay with lifetimes of 195 ± 14 fs and 4 ± 1 ps. The decay of 34SO+ was fit to 381 ± 30 fs. The results display that an inverse kinetic isotope effect is operative during dissociation of SO2 through the Ẽ state.

Original languageEnglish (US)
Pages (from-to)9-14
Number of pages6
JournalJournal of Physical Chemistry A
Volume108
Issue number1
DOIs
StatePublished - Jan 8 2004

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Photodissociation
Sulfur Dioxide
sulfur dioxides
Isotopes
photodissociation
decay
Pumps
Kinetics
isotope effect
isotopes
dissociation
pumps
life (durability)
probes
kinetics

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry

Cite this

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Photodissociation of sulfur dioxide : The Ẽ state revisited. / Knappenberger, Kenneth; Castleman, A. W.

In: Journal of Physical Chemistry A, Vol. 108, No. 1, 08.01.2004, p. 9-14.

Research output: Contribution to journalArticle

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