The permanent electric dipole moment of thorium sulfide, ThS

Anh Le, Michael C. Heaven, Timothy Steimle

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Numerous rotational lines of the {18.26}1-X1Σ band system of thorium sulfide, ThS, were recorded near 547.6 nm at a resolution of approximately 30 MHz. Measurements were made under field-free conditions, and in the presence of a static electric field. The field-free spectrum was analyzed to produce rotational and Λ-doubling parameters. The Stark shifts induced by the electric field were analyzed to determine permanent electric dipole moments, μCombining right arrow abovee l, of 4.58(10) D and 6.72(5) D for the X1Σ (v 0) and {18.26}1 states, respectively. The results are compared with the predictions of previous and new electronic structure calculations for ThS, and the properties of isovalent ThO.

Original languageEnglish (US)
Article number024307
JournalJournal of Chemical Physics
Volume140
Issue number2
DOIs
StatePublished - Jan 14 2014

ASJC Scopus subject areas

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

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