A molecular-beam optical Stark study of lines in the (1,0) band of the F 4Δ 7/2-X 4Δ 7/2 transition of iron monohydride, FeH

Timothy Steimle, Jinhai Chen, Jeremy J. Harrison, John M. Brown

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Abstract

A supersonic molecular beam of iron monohydride, FeH, has been generated using a laser ablation/chemical reaction scheme and probed at near-natural linewidth resolution by optical Stark spectroscopy utilizing laser-induced fluorescence detection. The observed Stark splitting in Q (3.5) and R (3.5) lines of the F Δ 72 4 X Δ 72 4 (1,0) transition were analyzed to determine values for the magnitudes of the permanent electric dipole moments, ∫μ∫, which were found to be 2.63(3) and 1.29 (3) D for the X Δ4 (v=0) and F Δ4 (v=1) states, respectively. A comparison with ab initio theoretical predictions is made. The doubling in the low- J levels of the F Δ 72 4 (v=1) state is also modeled.

Original languageEnglish (US)
Article number184307
JournalJournal of Chemical Physics
Volume124
Issue number18
DOIs
StatePublished - May 23 2006

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ASJC Scopus subject areas

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

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