High-level ab initio study of disulfur monoxide: Ground state potential energy surface and band origins for six isotopic species

In this work, a series of potential energy surfaces (PESs) of S2O was constructed in order to get the most accurate ab initio band origins of this massive molecule. The convergence of the coupled cluster energies with respect to both basis set size [aug-cc-pCVXZ, X = T, Q, 5, and 6] and the order of...

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Bibliographic Details
Published in:Chemical physics letters Vol. 811. P. 140216 (1-7)
Other Authors: Egorov, Oleg V., Rey, Michaël, Kochanov, Roman V., Nikitin, Andrei V., Tyuterev, Vladimir G.
Format: Article
Language:English
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Online Access:http://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001010899
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245 1 0 |a High-level ab initio study of disulfur monoxide: Ground state potential energy surface and band origins for six isotopic species  |c O. V. Egorov, M. Rey, R. V. Kochanov [et al.] 
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504 |a Библиогр.: 49 назв. 
520 3 |a In this work, a series of potential energy surfaces (PESs) of S2O was constructed in order to get the most accurate ab initio band origins of this massive molecule. The convergence of the coupled cluster energies with respect to both basis set size [aug-cc-pCVXZ, X = T, Q, 5, and 6] and the order of the excitation [CC(n), n = 2, 3, and 4] was analyzed. For the first time, the band origins of 32S216(18)O were variationally calculated with the error of 0.5 cm−1 using the ab initio PES. The vibrational energies of the most abundant six isotopologues of S2O were predicted. 
653 |a оксид серы 
653 |a поверхность потенциальной энергии 
653 |a основное состояние 
653 |a изотопные разновидности 
655 4 |a статьи в журналах  |9 905693 
700 1 |a Egorov, Oleg V.  |9 95713 
700 1 |a Rey, Michaël  |9 112225 
700 1 |a Kochanov, Roman V.  |9 99409 
700 1 |a Nikitin, Andrei V.  |9 96598 
700 1 |a Tyuterev, Vladimir G.  |9 96138 
773 0 |t Chemical physics letters  |d 2023  |g Vol. 811. P. 140216 (1-7)  |x 0009-2614 
852 4 |a RU-ToGU 
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