Robie, D.
and Hodges, J.
(2006),
Line Positions and Line Strengths for the 3 <-- 0 Electric Quadrupole Band of H<sub>2</sub> <sup>1</sup>Σ<sup>+</sup> <sub>g</sub>, Journal of Chemical Physics
(Accessed October 4, 2025)
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Line Positions and Line Strengths for the 3 2 1Σ+ g
Published
Author(s)
D C. Robie,
Abstract
Several rotational lines in the S and Q branches (including the previously unobserved Q32 and Q33 lines) of the 3-0 electric quadrupole band of H2 have been detected by cavity ring-down spectroscopy. Line strengths were measured at densities between 2.7X1018 and 7.7X1018 molecules cm-3 at room temperature. Observed line strengths in the S branch are consistent with earlier measurements, and systematically below theoretical calculations (relative differences of approximately 10 % for the S31, S32 and S33 lines, and nearly 30 % for the S30 line). Line strength measurements for the Q branch range from 25 % to 33 % below theoretical calculations.Citation
Journal of Chemical Physics
Volume
124
Issue
No. 2
Pub Type
Journals
Keywords
ammonia, Beer's law, methane, reference spectra, resolution, vapor-phase
Citation
Issues
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Created December 31, 2005, Updated October 12, 2021