Spectroscopic study of the system 2Σ→ 2π of OHradical and determination of the rotational temperatures by using a numerical model
- Journal de la Société Ouest-Africaine de Chimie , (38) : 22-29
Résumé
We develop in this note a simple and practical method for the determination of the rotational temperatures based on the observation of molecular bands produced by the OH-radical. For this, we make an approach based on the concept of thermodynamic equilibrium and we proceed to a detailed study of OH. We carry out the simulation of this OH-radical by systematically assuming the different cases of Hund. We have revised the molecular constants of the literature related to OH-radical, and we have used the expressions of the rotational energy levels which are in good agreement with literature data. We have established the evolution of the rotational structures as a function of the simulation parameters. The comparison between the results of literature and the simulated results has allowed deducing the rotational temperatures by using Boltzmann method.
Mots-clés
Energy Levels, Spectrum, Rotational Temperature, OH-radical