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Self-broadening coefficients and absolute line intensities in the ν4 + ν5 band of acetylene |
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| Authors: | Muriel Lepè re,Ghislain Blanquet,Jacques Walrand,Michel Herman |
| Affiliation: | a Laboratoire de Spectroscopie Moléculaire, FUNDP, 61, rue de Bruxelles B-5000, Belgium b Laboratoire de Photophysique Moléculaire, CNRS UPR3361, Université de Paris-Sud, F-91405 Orsay, France c Service de Chimie quantique et Photophysique CP 160/09, Université Libre de Bruxelles, 50, Av. Roosevelt, B-1050 Bruxelles, Belgium |
| Abstract: | Self-broadening coefficients and line strengths have been measured at room temperature for 30 lines of C2H2 in the P and R branches of the ν4 + ν5 band, using a tunable diode laser spectrometer. These lines, ranging from P(22) to R(23), are located in the spectral range 1275-1390 cm−1. A semiclassical calculation of the line broadenings has been performed considering the main electrostatic interactions and an anisotropic dispersion contribution leading to results in satisfactory agreement with the experimental data. |
| Keywords: | Acetylene Self-broadening Diode-laser spectroscopy |
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