Title of article
Observation of the C2H2−N2O van der Waals complex in the overtone range using CW-CRDS
Author/Authors
M. and Didriche، نويسنده , , K. and Lauzin، نويسنده , , C. and Macko، نويسنده , , Jagdish P. and Herman، نويسنده , , M. and Lafferty، نويسنده , , W.J.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2009
Pages
3
From page
35
To page
37
Abstract
A slit nozzle supersonic expansion containing C2H2 (246 sccm) and N2O (355 sccm) seeded into Ar (1260 sccm) is investigated using CW cavity ring-down spectroscopy, in the 1.5 μm range. The C2H2−N2O van der Waals complex is observed around the 2CH acetylenic band. Despite strong perturbations, 117 b-type lines are assigned. Their combined fit with published microwave data leads to new upper state and improved lower state rotational constants. The Lorentzian width of the assigned line profiles sets the mean lifetime to 1.6 ns. The rotational temperature is estimated to be 15 K from the comparison between observed and simulated spectra.
Journal title
Chemical Physics Letters
Serial Year
2009
Journal title
Chemical Physics Letters
Record number
1925662
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