Molecular beam optical Stark spectroscopy of YF

Jeffrey Shirley, Chris Scurlock, Timothy Steimle, Benoit Simard, Michael Vasseur, P. A. Hackett

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


The molecular-beam-optical Stark spectrum of the B 1Π(v = 0) - X 1Σ+ (v = 0) band system of YF has been recorded and analyzed. The permanent electric dipole moment μ and the magnetic hyperfine parameter a for the B1Π state were experimentally determined to be 2.96(4) D and 146.8(3) MHz and the experimentally determined value for μ(X 1Σ+) is 1.82(8) D. The sign of the magnetic hyperfine parameter indicates that the major contribution to the B 1Π state is from a⋯πδ configuration. The determined μ (X 2Σ+) value is compared with theoretical predictions and the ratio μ(X 1Σ+)/ μ(B 1Π) is rationalized in terms of plausible molecular orbital descriptions for the two electronic states.

Original languageEnglish (US)
Pages (from-to)8580-8585
Number of pages6
JournalThe Journal of chemical physics
Issue number12
StatePublished - 1990

ASJC Scopus subject areas

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


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