Transient solvent dynamics and incoherent control of photodissociation pathways in I-2 cluster ions

Andrei Sanov, Sreela Nandi, W. Carl Lineberger

Research output: Contribution to journalArticle

30 Scopus citations

Abstract

Detailed time-resolved photodissociation and caging dynamics in clusters are studied using I-2(OCS)11 as a model system. We report new observations of product channel-dependent properties of nuclear coherence in the dissociated chromophore, reflecting complex dynamics of the solvent cage. The coherence feature is most pronounced in the caged two-photon channels and its relative amplitude increases with the product size. Shorter delays, on the time scale of coherent I⋯I- motion, favor larger products, allowing for incoherent control of two-photon dissociation pathways by appropriately timing the two laser pulses. As an example of such control, I-2(OCS)2 is produced most effectively by a limited set of pump-probe excitations at short delays. We emphasize generality of these results that relate to caging dynamics in any cluster ions.

Original languageEnglish (US)
Pages (from-to)5155-5158
Number of pages4
JournalJournal of Chemical Physics
Volume108
Issue number13
DOIs
StatePublished - Apr 1 1998
Externally publishedYes

ASJC Scopus subject areas

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

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