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- Title
Density Functional Theory Analysis of Ground State and Evaluation of Transition Probability Parameters for Carbon Mono-Fluoride Molecule.
- Authors
Shanmugapriya, G.; Karthikeyan, B.; Vettumperumal, R.; Rajamanickam, N.
- Abstract
In view of astrophysical application, the ground state molecular parameters such as bond length, dipole moment, rotational constant, harmonic frequency, IR intensity, vibrational temperature of the astrophysically significant diatomic molecule of carbon mono-fluoride (CF) were derived using B3LYP hybrid density functional theory with three basis sets of 3-21G, 6-31G, and 6-311G. The computed data were collectively compared with the values reported in the literature. It was found that the vibrational temperature obtained using the density functional theory approach resembles the favorable temperature for the formation of the CF molecule in an interstellar medium. The transition probability parameters, namely Franck–Condon factors and r-centroids were evaluated for A–X, B–X, and D–X band systems of the CF molecule, using a more reliable numerical integration procedure. The molecular parameters of ground state obtained in the present study was compared with the reported values for better justification. The results of Franck–Condon factors and r-centroids were also discussed in view of astrophysical application.
- Subjects
DIATOMIC molecules; DENSITY functional theory; FRANCK-Condon principle; INTERSTELLAR molecules; FUNCTIONAL analysis; CHEMICAL bonds; ISOTOPOLOGUES; CARBON-carbon bonds
- Publication
Journal of Applied Spectroscopy, 2022, Vol 89, Issue 2, p330
- ISSN
0021-9037
- Publication type
Article
- DOI
10.1007/s10812-022-01362-0