The permanent electric dipole moment of CH in its A2Δ state

Timothy Steimle, David F. Nachman, David A. Fletcher, John M. Brown

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


The Q2e(2) rotational line in the (0, 0) band of the A2Δ-X2Π transition of CH in the gas phase was recorded at sub-Doppler resolution as a function of a dc electric field, using the technique of intermodulated fluorescence. The permanent electric dipole moment, μ, for the A2Δ state was determined to be 0.77 ± 0.07 Debye. The experimentally determined value is compared with theoretical estimates.

Original languageEnglish (US)
Pages (from-to)222-229
Number of pages8
JournalJournal of molecular spectroscopy
Issue number1
StatePublished - Nov 1989

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Spectroscopy
  • Physical and Theoretical Chemistry


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