Electronic Transitions Of Scandium Monoxide

Wang, Na

Permalink

https://hdl.handle.net/2142/51096 Copy

Description

Title

Electronic Transitions Of Scandium Monoxide

Author(s)

Wang, Na

Contributor(s)

• Cheung, Allan S.C.
• Ng, Yuk Wai

Issue Date

2014-06-17

Keyword(s)

Metal containing

Abstract

The electronic transition spectrum of scandium monoxide (ScO) in the spectral region between 290 and 311 nm has been recorded using laser ablation/reaction free-jet expansion and laser induced fluorescence spectroscopy. The ScO molecule was produced by reacting laser-ablated yttrium atoms with O$_{2}$ gas seeded in argon. Twenty transition bands were observed and thirteen of them have been selected for further studied by optical-optical double resonance (OODR) spectroscopy. Higher-lying electronic excited states have been reached via the intermediate B$^{2} \Sigma^{+}$ state from the ground X$^{2} \Sigma^{+}$ state. Our analysis indicates that the upper states conform to Hund’s case (c) coupling scheme, the sub-states analyzed so far have $\Omega$ = 0.5 and 1.5. In addition, for the first time, a quartet state namely $^{4} \Sigma^{+}$ state has been identified experimentally. Least squares fits of the measured rotational lines yield molecular constants for the newly identified excited states.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

English

Permalink

http://hdl.handle.net/2142/51096

DOI

https://doi.org/10.15278/isms.2014.TK03

Copyright and License Information

Copyright 2014 by the authors. Licensed under a Creative Commons Attribution 4.0 International License. http://creativecommons.org/licenses/by/4.0/

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