Spectroscopy and vibrational couplings in the 3v3 region of acetylene
- 10 February 1989
- journal article
- research article
- Published by Taylor & Francis in Molecular Physics
- Vol. 66 (2), 333-353
- https://doi.org/10.1080/00268978900100161
Abstract
14 rovibrational bands are observed in the 1 micron region of the absorption spectrum of C2H2, between 9300 and 10 500 cm-1, and rotationally analysed. Transition induced dipole moments are estimated for all the cold bands involving upper levels of σ u + symmetry. Those various data are used to demonstrate the leading role of the 0030000 level in the vibrational mixings and also to deal quantitatively with a possible picture of the couplings occurring among the cluster of levels in resonance with 0030000.Keywords
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