Journal
MOLECULAR PHYSICS
Volume 110, Issue 21-22, Pages 2621-2632Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/00268976.2012.705345
Keywords
(C2H2)-C-13; high-resolution Fourier transform infrared spectroscopy; fundamental; combination; overtone; hot bands; global analysis
Funding
- NSERC
- NRC
- CIHR
- University of Saskatchewan
- Ministero dell'Istruzione dell'Universita e della Ricerca
- Action de Recherches Concertees de la Communaute francaise de Belgique
Ask authors/readers for more resources
The vibration-rotation spectra of C-13 substituted acetylene, (C2H2)-C-13, have been recorded in the region between 60 and 2600 cm(-1) at an effective resolution ranging from 0.001 to 0.006 cm(-1). Three different instruments were used to collect the experimental data in the extended spectral interval investigated. In total 9529 rotation vibration transitions have been assigned to 101 bands involving the bending states up to nu(tot) = nu(4) + nu(5) = 4, allowing the characterization of the ground state and of 33 vibrationally excited states. All the bands involving states up to nu(tot) = 3 have been analyzed simultaneously by adopting a model Hamiltonian which takes into account the vibration and rotation l-type resonances. The derived spectroscopic parameters reproduce the transition wavenumbers with a RMS value of the order of the experimental uncertainty. Using the same model, larger discrepancies between observed and calculated values have been obtained for transitions involving states with nu(tot) = 4. These could be satisfactorily reproduced only by adopting a set of effective constants for each vibrational manifold, in addition to the previously determined parameters, which were constrained in the analysis. v
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available