Direct measurement of the binding energy of the linear He ⋯ I 35,37Cl(X) isotopomers

Joshua P. Darr, Andrew C. Crowther, Richard A. Loomis

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Two color, pump-probe action spectra were recorded by tuning an excitation laser through the ICl B-X, 2-0 spectral region and monitoring the fluorescence induced by a probe laser, which was fixed on either the I35Cl or the I37Cl E-B, 13-2 bandhead. A continuum signal is observed above a discrete energy in each of the action spectra that is attributed to bound-free transitions of the He⋯I35,37Cl complexes with preferred linear equilibrium geometries. The shifts of the onsets of the continuum signals from the transition energies of the respective I35Cl and I37Cl B-X, 2-0 band origins correspond to ground state binding energies of 22.3(1.2) and 22.5(1.1) cm-1 for the linear He⋯I35Cl(X,v″=0) and He⋯I 37Cl(X,v″=0) isotopomers.

Original languageEnglish (US)
Pages (from-to)359-367
Number of pages9
JournalChemical Physics Letters
Volume378
Issue number3-4
DOIs
StatePublished - Sep 5 2003

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Binding energy
binding energy
continuums
Laser excitation
probes
Ground state
lasers
Tuning
Fluorescence
tuning
Pumps
pumps
Color
color
fluorescence
ground state
Geometry
energy
Lasers
Monitoring

ASJC Scopus subject areas

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

Cite this

Direct measurement of the binding energy of the linear He ⋯ I 35,37Cl(X) isotopomers. / Darr, Joshua P.; Crowther, Andrew C.; Loomis, Richard A.

In: Chemical Physics Letters, Vol. 378, No. 3-4, 05.09.2003, p. 359-367.

Research output: Contribution to journalArticle

Darr, Joshua P. ; Crowther, Andrew C. ; Loomis, Richard A. / Direct measurement of the binding energy of the linear He ⋯ I 35,37Cl(X) isotopomers. In: Chemical Physics Letters. 2003 ; Vol. 378, No. 3-4. pp. 359-367.
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