The electric dipole moment of cobalt monoxide, CoO

Xiujuan Zhuang, Timothy Steimle

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


A number of low-rotational lines of the E4Δ7/2 ← X4Δ7/2 (1,0) band system of cobalt monoxide, CoO, were recorded field free and in the presence of a static electric field. The magnetic hyperfine parameter, h7/2, and the electron quadrupole parameter, eQq0, for the E4Δ7/2(υ = 1) state were optimized from the analysis of the field-free spectrum. The permanent electric dipole moment, μel, for the X 4Δ7/2 (υ = 0) and E4Δ 7/2 (υ = 1) states were determined to be 4.18 ± 0.05 D and 3.28 ± 0.05 D, respectively, from the analysis of the observed Stark spectra of F′ = 7←F″ = 6 branch feature in the Q(7/2) line and the F′ = 8←F″ = 7 branch feature in the R(7/2) line. The measured dipole moments of CoO are compared to those from theoretical predictions and the trend across the 3d-metal monoxide series discussed.

Original languageEnglish (US)
Article number124301
JournalJournal of Chemical Physics
Issue number12
StatePublished - Mar 28 2014

ASJC Scopus subject areas

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


Dive into the research topics of 'The electric dipole moment of cobalt monoxide, CoO'. Together they form a unique fingerprint.

Cite this