Hyperfine Structure in the (0,0,0) X̃2Σ+ State of CaOH Observed by Pump/Probe Microwave-Optical Double Resonance
✍ Scribed by C.T. Scurlock; D.A. Fletcher; T.C. Steimle
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 366 KB
- Volume
- 159
- Category
- Article
- ISSN
- 0022-2852
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✦ Synopsis
A pump/probe microwave-optical double resonance experiment has been performed on calcium monohydroxide, (\mathrm{CaOH}), using the technique of laser ablation/supersonic expansion for production of the compound. Frequencies associated with the three lowest pure rotational transitions in the ((0,0,0) \dot{X}^{2} \Sigma^{+})vibronic state were observed with a resolution of (<80 \mathrm{kHz}) (FWHM) and were analyzed to give the spectroscopic parameters (in MHz): (B=10023.0841) (7), (D=0.01154) (5), (\gamma=34.7593(10), b_{\mathrm{F}}(\mathrm{H})=2.602(3), c(\mathrm{H})=2.053(10)). The proton hyperfine interactions were interpreted in terms of a molecular orbital description for the (\dot{X}^{2} \Sigma^{+})state. 1993 Academic Press. Inc.