The influence of relativistic effects on nuclear magnetic resonance spin-spin coupling constant polarizabilities of H 2 O 2 , H 2 S 2 , H 2 Se 2 , and H 2 Te 2
Relativistic and nonrelativistic calculations have been performed on hydrogen peroxide, dihydrogen disulfide, dihydrogen diselenide, and dihydrogen ditelluride, H X (X = O, S, Se, Te), to investigate the consequences of relativistic effects on their structures as well as their nuclear magnetic reson...
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Veröffentlicht in: | Journal of computational chemistry 2018-12, Vol.39 (31), p.2589-2600 |
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Hauptverfasser: | , , , |
Format: | Artikel |
Sprache: | eng |
Online-Zugang: | Volltext |
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Zusammenfassung: | Relativistic and nonrelativistic calculations have been performed on hydrogen peroxide, dihydrogen disulfide, dihydrogen diselenide, and dihydrogen ditelluride, H
X
(X = O, S, Se, Te), to investigate the consequences of relativistic effects on their structures as well as their nuclear magnetic resonance (NMR) spin-spin coupling constants and spin-spin coupling constant polarizabilites. The study has been performed using both one-component nonrelativistic and four-component relativistic calculations at the density functional theory (DFT) level with the B3LYP exchange-correlation functional. The calculation of nuclear spin-spin coupling constant polarizabilities has been performed by evaluating the components of the third order tensor, nuclear spin-spin coupling polarizability, using quadratic response theory. From this, the pseudoscalar associated with this tensor has also been calculated. The results show that relativistic corrections become very important for H
Se
and H
Te
and hint that a new chiral discrimination technique via NMR spectroscopy might be possible for molecules containing elements like Se or Te. © 2018 Wiley Periodicals, Inc. |
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ISSN: | 0192-8651 1096-987X |
DOI: | 10.1002/jcc.25648 |