Thermodynamical Quantities of Chalcogenide Dimers (O2, S2, Se2, and Te2) from Spectroscopic Data

Attempts have been made to calculate the thermodynamical quantities of diatomic molecules such as O2, S2, Se2, and Te2 from spectroscopic data with the help of partition function theory. The results have been calculated in the temperature range 100–3000°C. In order to increase accuracy of the calcul...

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Main Authors: Shipra Tiwari, Pavitra Tandon, K. N. Uttam
Format: Article
Language:English
Published: Wiley 2013-01-01
Series:Journal of Spectroscopy
Online Access:http://dx.doi.org/10.1155/2013/956581
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author Shipra Tiwari
Pavitra Tandon
K. N. Uttam
author_facet Shipra Tiwari
Pavitra Tandon
K. N. Uttam
author_sort Shipra Tiwari
collection DOAJ
description Attempts have been made to calculate the thermodynamical quantities of diatomic molecules such as O2, S2, Se2, and Te2 from spectroscopic data with the help of partition function theory. The results have been calculated in the temperature range 100–3000°C. In order to increase accuracy of the calculated quantities, we have incorporated nonrigidity, anharmonicity, and stretching effects of molecules. The variation of these quantities with temperature have been studied and explained in terms of various modes of molecular motions.
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spelling doaj-art-bef2b7ea795f4275ad4fd58fb58f0a542025-08-20T03:23:07ZengWileyJournal of Spectroscopy2314-49202314-49392013-01-01201310.1155/2013/956581956581Thermodynamical Quantities of Chalcogenide Dimers (O2, S2, Se2, and Te2) from Spectroscopic DataShipra Tiwari0Pavitra Tandon1K. N. Uttam2Saha's Spectroscopy Laboratory, Department of Physics, University of Allahabad, Allahabad 211 002, IndiaThe National Academy of Sciences, India, Allahabad 211 002, IndiaSaha's Spectroscopy Laboratory, Department of Physics, University of Allahabad, Allahabad 211 002, IndiaAttempts have been made to calculate the thermodynamical quantities of diatomic molecules such as O2, S2, Se2, and Te2 from spectroscopic data with the help of partition function theory. The results have been calculated in the temperature range 100–3000°C. In order to increase accuracy of the calculated quantities, we have incorporated nonrigidity, anharmonicity, and stretching effects of molecules. The variation of these quantities with temperature have been studied and explained in terms of various modes of molecular motions.http://dx.doi.org/10.1155/2013/956581
spellingShingle Shipra Tiwari
Pavitra Tandon
K. N. Uttam
Thermodynamical Quantities of Chalcogenide Dimers (O2, S2, Se2, and Te2) from Spectroscopic Data
Journal of Spectroscopy
title Thermodynamical Quantities of Chalcogenide Dimers (O2, S2, Se2, and Te2) from Spectroscopic Data
title_full Thermodynamical Quantities of Chalcogenide Dimers (O2, S2, Se2, and Te2) from Spectroscopic Data
title_fullStr Thermodynamical Quantities of Chalcogenide Dimers (O2, S2, Se2, and Te2) from Spectroscopic Data
title_full_unstemmed Thermodynamical Quantities of Chalcogenide Dimers (O2, S2, Se2, and Te2) from Spectroscopic Data
title_short Thermodynamical Quantities of Chalcogenide Dimers (O2, S2, Se2, and Te2) from Spectroscopic Data
title_sort thermodynamical quantities of chalcogenide dimers o2 s2 se2 and te2 from spectroscopic data
url http://dx.doi.org/10.1155/2013/956581
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