Computer Science
Scientific paper
Apr 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aipc..467..453s&link_type=abstract
The 14th international conference on spectral line shapes. AIP Conference Proceedings, Volume 467, pp. 453-356 (1999).
Computer Science
Infrared Spectra, Potential Energy Surfaces For Collisions
Scientific paper
Collision-induced absorption (CIA) spectra of double vibrational transitions of H2(v=1-0)+N2(v=1-0) were studied in their binary mixtures in the spectral region 5900 to 7100 cm-1. The spectra were recorded with a 2 m high-pressure cell for partial densities of H2 and N2 in the range 60 to 400 and 100 to 350 amagat, respectively, at 201 K and 298 K. The observed spectra are interpreted in terms of several double transitions such as: O1(2)+Q1(J), Q1(J)+Q1(J), Q1(J)+Q1(J), Q1(J)+S1(J), S1(0)+Q1(J), S1(1)+Q1(J), and S1(2)+Q1(J), the first component from H2 and the second component from N2. These transitions occur on the high frequency wing of the H2 CIA fundamental band. Various semi-emperical line shapes were used in the analysis of the observed spectra. Birnbaum-Cohen line-shape function was found to give satisfactory fits of the calculated profiles to the experimental profiles. Line-shape parameters and absorption coefficients obtained from the analysis are given.
Gillard P. G.
Prasad D. G. R.
Reddy Stephen P.
Stamp Clifford
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