Search from over 60,000 research works

Advanced Search

Simultaneous analysis of v1, v4, 2v2, v2+v5, and 2v5 bands of 12CH3F

Full text not archived in this repository.
Add to AnyAdd to TwitterAdd to FacebookAdd to LinkedinAdd to PinterestAdd to Email

Champion, J. P., Robiette, A. G., Mills, I. and Graner, G. (1982) Simultaneous analysis of v1, v4, 2v2, v2+v5, and 2v5 bands of 12CH3F. Journal of Molecular Spectroscopy, 96 (2). pp. 422-441. ISSN 0022-2852 doi: 10.1016/0022-2852(82)90207-7

Abstract/Summary

The Fourier-transform spectrum of CH3F from 2800 to 3100 cm−1, obtained by Guelachvili in Orsay at a resolution of about 0.003 cm−1, was analyzed. The effective Hamiltonian used contained all symmetry allowed interactions up to second order in the Amat-Nielsen classification, together with selected third-order terms, amongst the set of nine vibrational basis functions represented by the states ν1(A1), ν4(E), 2ν2(A1), ν2 + ν5(E), 2ν50(A1), and 2ν5±2(E). A number of strong Fermi and Coriolis resonances are involved. The vibrational Hamiltonian matrix was not factorized beyond the requirements of symmetry. A total of 59 molecular parameters were refined in a simultaneous least-squares analysis to over 1500 upper-state energy levels for J ≤ 20 with a standard deviation of 0.013 cm−1. Although the standard deviation remains an order of magnitude greater than the precision of the measurements, this work breaks new ground in the simultaneous analysis of interacting symmetric top vibrational levels, in terms of the number of interacting vibrational states and the number of parameters in the Hamiltonian.

Altmetric Badge

Item Type Article
URI https://reading-clone.eprints-hosting.org/id/eprint/7573
Item Type Article
Refereed Yes
Divisions Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
Publisher Academic Press
Download/View statistics View download statistics for this item

University Staff: Request a correction | Centaur Editors: Update this record

Search Google Scholar