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Rotationally Resolved REMPI Spectra of CaH in a Molecular Beam

Journal of Molecular Spectroscopy, ISSN: 0022-2852, Vol: 212, Issue: 1, Page: 17-21
2002
  • 11
    Citations
  • 0
    Usage
  • 8
    Captures
  • 1
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    11
    • Citation Indexes
      11
  • Captures
    8
  • Mentions
    1
    • References
      1
      • Wikipedia
        1

Article Description

Rotationally resolved spectra of the CaH radical using a supersonic molecular beam are reported. Thus, high energy resolution of the (1+1′) REMPI spectra corresponding to the A ← X and B ← X electronic transitions were measured which allowed for the first time a clear and precise analysis of the low rotational part ( J ≤7) of the CaH spectrum. A comparison with previous studies revealed that the commonly accepted energy separation between the two band heads of B − X ( v ′=1, v ′=0) of 10 cm −1 is not correct. A value of ca. 1.6 cm −1 was found to be more realistic. On the other hand, the present study confirmed that the perturbation appears only for v ′=1, N ′>3 of the B state.

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