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THE INFRARED ABSORPTION SPECTRUM OF $C_{2}H_{2}$ AROUND $1300 CM^{-1}$

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/18263

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Title: THE INFRARED ABSORPTION SPECTRUM OF $C_{2}H_{2}$ AROUND $1300 CM^{-1}$
Creators: Kabbadj, Y.; Herman, M.; Huet, T. R.; Auwera, J. Vander
Issue Date: 1990
Abstract: The absorption spectrum of $C_{2}H_{2}$ has been recorded with a resolution of $\sim 0.003 cm^{-1}$ using a Bruker IFS.120HR Fourier Transform Spectrometer, between 1200 and $1450 cm^{-1}$. The spectrum, which was previously studied in the literature (1) at lower resolution, is reinvestigated. Several new bands will be reported. A full Hamiltonian dealing with vibrational and rotational $\ell$-doubling interactions, inspired from (2,3), is used to improve the previous rovibrational constants concerning the $\nu_{4}$ and $\nu_{5}$ bending modes. The use of a unique model to deal simultaneously with all observed transitions will allow to consider relative intensities features between the various $\Delta \ell$ subbands. It is hoped that this approach will help reconsidering the absolute intensities problem in an atmospheric context. This work is part of the belgian contribution to EUROTRAC, sponsored by the SPPS (Belgium).
URI: http://hdl.handle.net/1811/18263
Other Identifiers: 1990-TB-8
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