Affiliation:
1. Federal University Lokoja
2. Federal University Wukari
3. Federal University Oye-Ekiti
4. Joseph Ayo Babalola University
Abstract
Abstract
We studied the thermodynamic properties of 18 isoelectric diatomic interstellar molecular species (known and potential) containing oxygen and the corresponding isoelectronic atom; Sulphur, by providing a comprehensive data set for these molecules of astrophysical importance. We began this by computing its partition function q with the GAUSSIAN 09 suite of programs, the thermodynamics properties such as the entropy S, internal energy U, free energy F, heat capacity H etc. were derived. We showed the isoelectronic effect of these Sulphur and Oxygen containing molecular species on several interstellar molecules at temperatures ranging from 0K to 2×106 K (i.e., from the coldest place in the universe to the mean temperature of the interstellar medium).
Publisher
Research Square Platform LLC
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