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Journal of Chemical Physics / Volume 127 / Issue 20 / ARTICLES / Gas Phase Dynamics and Structure: Spectroscopy, Molecular Interactions, Scattering, and Photochemistry

J. Chem. Phys. 127, 204307 (2007); http://dx.doi.org/10.1063/1.2800003 (6 pages)

The permanent electric dipole moment of chromium monodeuteride, CrD

Jinhai Chen1, Timothy C. Steimle1, and Anthony J. Merer2

1Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287-1604, USA
2Department of Chemistry, University of British Columbia, 6174 University Boulevard, Vancouver, British Columbia V6T 1Z3, Canada

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(Received 31 August 2007; accepted 25 September 2007; published online 28 November 2007)

A number of low-N lines of the X 6Σ+←A 6Σ+(0,0) band of chromium monodeuteride, CrD, have been recorded at near the natural linewidth limit by high resolution laser excitation spectroscopy of a supersonic molecular beam sample. The shifts and splitting of these lines caused by a static electric field have been analyzed to give the permanent electric dipole moments of the X 6Σ+(υ = 0) and A 6Σ+(υ = 0) states as 3.510(33) and 1.153(3) D, respectively. The dipole moment of the A 6Σ+(υ = 0) state can be measured with higher precision because of some interesting near degeneracies in its level structure. The trends in the observed dipole moments for the first-row transition metal monohydrides are rationalized and compared with theoretical predictions.

© 2007 American Institute of Physics

Article Outline

  1. INTRODUCTION
  2. EXPERIMENT
  3. OBSERVATIONS
  4. ANALYSIS
  5. DISCUSSION
  6. CONCLUSION

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KEYWORDS and PACS

Keywords

chromium compounds, electric moments, molecular moments, spectral line shift, Stark effect

PACS

  • 33.57.+c

    Magneto-optical and electro-optical spectra and effects

  • 33.70.Jg

    Line and band widths, shapes, and shifts

  • 33.15.Kr

    Electric and magnetic moments (and derivatives), polarizability, and magnetic susceptibility

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.2800003

PUBLICATION DATA

ISSN

0021-9606 (print)  
1089-7690 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
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