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Type: Journal article
Title: Observation of the Q(3/2) Λ-doublet transitions for X²Π₃⁄₂ OD in helium nanodroplets
Other Titles: Observation of the Q(3/2) Lambda-doublet transitions for X(2)Pi(3/2) OD in helium nanodroplets
Author: Raston, P.
Liang, T.
Douberly, G.
Citation: Molecular Physics: An International Journal at the Interface Between Chemistry and Physics, 2014; 112(2):301-303
Publisher: Taylor & Francis
Issue Date: 2014
ISSN: 0026-8976
Statement of
Paul L. Raston, Tao Liang and Gary E. Douberly
Abstract: The deuteroxyl radical (OD) has been isolated in superfluid helium nanodroplets and characterised by infrared depletion spectroscopy. Two resolved Q(3/2) lines are observed, with a separation that is 4.88 (10) times larger than in the gas phase. This is similar to that previously reported for He-solvated OH (5.30 (2)), for which it was shown that the splitting could be reproduced by a model that assumes a small parity dependence of the rotor's effective moment of inertia [P.L. Raston, T. Liang, and G.E. Douberly, J. Phys. Chem. A (2013). DOI:10.1021/jp312335q]. With this model, the OD Λ-doublet splitting in liquid He is reproduced with Be and Bf rotational constants that differ by ≈0.24%.
Keywords: lambda doubling; hydroxyl radical; helium droplets; infrared spectroscopy
Rights: © 2013 Taylor & Francis
DOI: 10.1080/00268976.2013.809807
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