Photodissociation dynamics of dicyclopropyl ketone at 193 nm: Isomerization of the cyclopropyl ligand

Samuel M. Clegg, Bradley F. Parsons, Stephen J. Klippenstein, David L. Osborn

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

The dissociation dynamics of dicyclopropyl ketone excited in the (S2←S0) band at λ=193 nm was studied. Experimental results from two complementary techniques determine the identity of the products and measure their translational and internal energies. Electronic structure calculations were employed to define stationary points on the relevant potential energy surfaces and phase-space theory calculations to predict product state distributions. Based on the results, a dissociation mechanism for DCPK in which isomerization occurs before fragmentation, leading to the formation of allyl as the principal isomer of the C3H5 radical was proposed.

Original languageEnglish (US)
Pages (from-to)7222-7236
Number of pages15
JournalJournal of Chemical Physics
Volume119
Issue number14
DOIs
StatePublished - Oct 8 2003
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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