High Resolution Laser Spectroscopy of SrOCH_3

Details High Resolution Laser Spectroscopy of SrOCH_3 High Resolution Laser Spectroscopy of SrOCH_3

Jun 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011mss..confetd05f&link_type=abstract

"International Symposium On Molecular Spectroscopy, 66th Meeting, Held 20-24 June, 2011 at Ohio State University. http://molspec

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The tilde{A}2E-tilde{X}2A_1 transition of SrOCH_3 was first studied at high resolution by O'Brien et al.footnote{L. C. O'Brien, C. R. Brazier and P. F. Bernath, J. Mol. Spectrosc. 130 (1988) 33-45} using a Broida oven. However lines with typically J≤20 were not observed and congestion prevented them from resolving transitions from the Ω=1/2 component of the upper state. We have studied the tilde{B}2A_1-tilde{X}2A_1 and the tilde{A}2E-tilde{X}2A_1 transitions of SrOCH_3 in a laser ablation molecular jet source, where jet cooling and low Doppler widths greatly simplified the spectra. An optical-optical double resonance technique facilitated definite assignments in a number of the transitions observed. Our analysis of the tilde{A}2E-tilde{X}2A_1 transition was straightforward, but a perturbation was observed in the tilde{B}2A_1 K'=1 F_2 levels. A satisfactory fit was achieved for the tilde{B}2A_1-tilde{X}2A_1 transition when a separate B parameter was used to fit the perturbed levels.

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