Preferential Stabilization of Different Isomers of Weakly Bound Complexes

David S. Boucher, Matthew D. Bradke, Joshua Paul Darr, Richard A. Loomis

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

The experimental results reported here demonstrate that weakly bound van der Waals complexes are not necessarily kinetically trapped in different isomeric forms in a supersonic expansion. We have recorded the laser-induced fluorescence spectra of the near T-shaped and linear He⋯ICl(X 1σ+,μ″ = 0) complexes in the ICl B-X, 3-0 spectral region at varying distances along the expansion direction to monitor the populations of the two isomers as the local density, collision frequency, and temperature change. The ratio of the T-shaped to linear complex populations monotonically decreases with increasing downstream distances and thus lower ICl(X) rotational temperatures. Conversion from T-shaped to linear complexes is still observed at the furthest distances where a temperature of 0.57(8) K is measured.

Original languageEnglish (US)
Pages (from-to)6901-6904
Number of pages4
JournalJournal of Physical Chemistry A
Volume107
Issue number36
DOIs
StatePublished - Sep 11 2003

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Isomers
isomers
Stabilization
stabilization
expansion
laser induced fluorescence
Temperature
temperature
Fluorescence
collisions
Lasers
Direction compound

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Preferential Stabilization of Different Isomers of Weakly Bound Complexes. / Boucher, David S.; Bradke, Matthew D.; Darr, Joshua Paul; Loomis, Richard A.

In: Journal of Physical Chemistry A, Vol. 107, No. 36, 11.09.2003, p. 6901-6904.

Research output: Contribution to journalArticle

Boucher, David S. ; Bradke, Matthew D. ; Darr, Joshua Paul ; Loomis, Richard A. / Preferential Stabilization of Different Isomers of Weakly Bound Complexes. In: Journal of Physical Chemistry A. 2003 ; Vol. 107, No. 36. pp. 6901-6904.
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