Hyperfine interaction and Stark effect in the b3Π-X 1+(0,0) band of copper monofluoride, CuF

Fang Wang, Timothy Steimle

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The low-rotational levels of the b3Π- X1+(0,0) band of copper monofluoride, CuF, were recorded field free and in the presence of a static electric field. The field-free spectrum was analyzed to produce a refined set of fine and hyperfine parameters for the b Π3 (v=0) state. The permanent electric dipole moment, μ, for the b3Π(v=0) and X1+(v=0) states were determined to be 2.36(2) and 5.26(2) D, respectively, from the analysis of the observed Stark shifts. The experimental μ values are compared to theoretical predictions. The change in μ upon excitation and the hyperfine parameters are discussed in terms of the proposed electronic configuration for the b3Π and X1+ states. The optical Stark spectroscopy of the A2Π3/2- X2+ (0,0) subband of YO was also recorded and analyzed to precisely calibrate the electric field strength. The determined μ values are 3.714(5) and 4.542(40) D for the A2Π3/2 (v=0) and X2+ (v=0) states, respectively.

Original languageEnglish (US)
Article number054301
JournalJournal of Chemical Physics
Issue number5
StatePublished - Feb 16 2010


ASJC Scopus subject areas

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

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