Linear relations between vibrational energy levels of CO 2 and fourth order spectroscopic constants
- 20 June 1991
- journal article
- research article
- Published by Taylor & Francis in Molecular Physics
- Vol. 73 (3) , 685-689
- https://doi.org/10.1080/00268979100101461
Abstract
We establish the general formula giving the sum of vibrational energy levels belonging to a Fermi polyad, as a function of quantum numbers and spectroscopic constants up to 4th order approximation. This formula makes it possible to write all the linear relations existing between spectroscopic constants (or combinations of spectroscopic constants) and vibrational energy levels.Keywords
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