Carbonic Acid Revisited: Vibrational Spectra, Energetics and the Possibility of Detecting an Elusive Molecule
We calculate harmonic frequencies of the three most abundant carbonic acid conformers. For this, different model chemistries are investigated with respect to their benefits and shortcomings. Based on these results we use perturbation theory to calculate anharmonic corrections at the ωB97XD/aug-cc-pV...
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ftdatacite:10.48550/arxiv.1205.5483 2023-05-15T15:52:05+02:00 Carbonic Acid Revisited: Vibrational Spectra, Energetics and the Possibility of Detecting an Elusive Molecule Huber, Stefan E. Dalnodar, Silvia Kausch, Wolfgang Kimeswenger, Stefan Probst, Michael 2012 https://dx.doi.org/10.48550/arxiv.1205.5483 https://arxiv.org/abs/1205.5483 unknown arXiv https://dx.doi.org/10.1063/1.4755786 arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ Earth and Planetary Astrophysics astro-ph.EP Chemical Physics physics.chem-ph FOS Physical sciences article-journal Article ScholarlyArticle Text 2012 ftdatacite https://doi.org/10.48550/arxiv.1205.5483 https://doi.org/10.1063/1.4755786 2022-04-01T14:02:56Z We calculate harmonic frequencies of the three most abundant carbonic acid conformers. For this, different model chemistries are investigated with respect to their benefits and shortcomings. Based on these results we use perturbation theory to calculate anharmonic corrections at the ωB97XD/aug-cc-pVXZ, X=D,T,Q, level of theory and compare them with recent experimental data and theoretical predictions. A discrete variable representation method is used to predict the large anharmonic contributions to the frequencies of the stretching vibrations in the hydrogen bonds in the carbonic acid dimer. Moreover, we re-investigate the energetics of the formation of the carbonic acid dimer from its constituents water and carbon dioxide using a high-level extrapolation method. We find that the ωB97XD functional performs well in estimating the fundamental frequencies of the carbonic acid conformers. Concerning the reaction energetics, the accuracy of ωB97XD is even comparable to the high-level extrapolation method. We discuss possibilities to detect carbonic acid in various natural environments such as Earth's and Martian atmospheres. : 22 pages, 2 figures, 5 tables. Copyright 2012 Author(s). This article is distributed under a Creative Commons Attribution 3.0 Unported License. The following article appeared in AIP Advances 2, 032180 (2012) and may be found at http://link.aip.org/link/?ADV/2/032180 Text Carbonic acid DataCite Metadata Store (German National Library of Science and Technology) |
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Earth and Planetary Astrophysics astro-ph.EP Chemical Physics physics.chem-ph FOS Physical sciences |
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Earth and Planetary Astrophysics astro-ph.EP Chemical Physics physics.chem-ph FOS Physical sciences Huber, Stefan E. Dalnodar, Silvia Kausch, Wolfgang Kimeswenger, Stefan Probst, Michael Carbonic Acid Revisited: Vibrational Spectra, Energetics and the Possibility of Detecting an Elusive Molecule |
topic_facet |
Earth and Planetary Astrophysics astro-ph.EP Chemical Physics physics.chem-ph FOS Physical sciences |
description |
We calculate harmonic frequencies of the three most abundant carbonic acid conformers. For this, different model chemistries are investigated with respect to their benefits and shortcomings. Based on these results we use perturbation theory to calculate anharmonic corrections at the ωB97XD/aug-cc-pVXZ, X=D,T,Q, level of theory and compare them with recent experimental data and theoretical predictions. A discrete variable representation method is used to predict the large anharmonic contributions to the frequencies of the stretching vibrations in the hydrogen bonds in the carbonic acid dimer. Moreover, we re-investigate the energetics of the formation of the carbonic acid dimer from its constituents water and carbon dioxide using a high-level extrapolation method. We find that the ωB97XD functional performs well in estimating the fundamental frequencies of the carbonic acid conformers. Concerning the reaction energetics, the accuracy of ωB97XD is even comparable to the high-level extrapolation method. We discuss possibilities to detect carbonic acid in various natural environments such as Earth's and Martian atmospheres. : 22 pages, 2 figures, 5 tables. Copyright 2012 Author(s). This article is distributed under a Creative Commons Attribution 3.0 Unported License. The following article appeared in AIP Advances 2, 032180 (2012) and may be found at http://link.aip.org/link/?ADV/2/032180 |
format |
Text |
author |
Huber, Stefan E. Dalnodar, Silvia Kausch, Wolfgang Kimeswenger, Stefan Probst, Michael |
author_facet |
Huber, Stefan E. Dalnodar, Silvia Kausch, Wolfgang Kimeswenger, Stefan Probst, Michael |
author_sort |
Huber, Stefan E. |
title |
Carbonic Acid Revisited: Vibrational Spectra, Energetics and the Possibility of Detecting an Elusive Molecule |
title_short |
Carbonic Acid Revisited: Vibrational Spectra, Energetics and the Possibility of Detecting an Elusive Molecule |
title_full |
Carbonic Acid Revisited: Vibrational Spectra, Energetics and the Possibility of Detecting an Elusive Molecule |
title_fullStr |
Carbonic Acid Revisited: Vibrational Spectra, Energetics and the Possibility of Detecting an Elusive Molecule |
title_full_unstemmed |
Carbonic Acid Revisited: Vibrational Spectra, Energetics and the Possibility of Detecting an Elusive Molecule |
title_sort |
carbonic acid revisited: vibrational spectra, energetics and the possibility of detecting an elusive molecule |
publisher |
arXiv |
publishDate |
2012 |
url |
https://dx.doi.org/10.48550/arxiv.1205.5483 https://arxiv.org/abs/1205.5483 |
genre |
Carbonic acid |
genre_facet |
Carbonic acid |
op_relation |
https://dx.doi.org/10.1063/1.4755786 |
op_rights |
arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
op_doi |
https://doi.org/10.48550/arxiv.1205.5483 https://doi.org/10.1063/1.4755786 |
_version_ |
1766387390784471040 |