Rovibrational Energies of 13C16O2 Determined with Kilohertz Accuracy
Accurate spectroscopic data of carbon dioxide are widely used in many important applications, such as carbon monitoring missions. Here, we present comb-locked cavity ring-down saturation spectroscopy of the second most abundant isotopologue of CO2, 13C16O2. We determined the positions of 88 lines in three vibrational bands in the 1.6 μm region, 30011e/30012e/30013e-00001e, with an accuracy of a few kHz. Based on the analysis of combination differences, we obtained for the first time the ground-state rotational energies with kHz accuracy. We also provide a set of hybrid line positions for 150 13C16O2 transitions. The rotational energies (J < 50) in the 30013e vibrational state can be fitted by a set of rotational and centrifugal constants with deviations within a few kHz, indicating that the 30013e state is free of perturbations. These precise isotopic line positions will be utilized to improve the Hamiltonian model and quantitative remote sensing of carbon dioxide. Moreover, they will help to track changes in the carbon source and sink through isotopic analysis.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:128 |
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| Enthalten in: |
The journal of physical chemistry. A - 128(2024), 12 vom: 28. März, Seite 2366-2375 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Zhang, Zi-Tan [VerfasserIn] |
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| Anmerkungen: |
Date Revised 28.03.2024 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1021/acs.jpca.4c00697 |
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| Förderinstitution / Projekttitel: |
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NLM369794346 |
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| 245 | 1 | 0 | |a Rovibrational Energies of 13C16O2 Determined with Kilohertz Accuracy |
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| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a Accurate spectroscopic data of carbon dioxide are widely used in many important applications, such as carbon monitoring missions. Here, we present comb-locked cavity ring-down saturation spectroscopy of the second most abundant isotopologue of CO2, 13C16O2. We determined the positions of 88 lines in three vibrational bands in the 1.6 μm region, 30011e/30012e/30013e-00001e, with an accuracy of a few kHz. Based on the analysis of combination differences, we obtained for the first time the ground-state rotational energies with kHz accuracy. We also provide a set of hybrid line positions for 150 13C16O2 transitions. The rotational energies (J < 50) in the 30013e vibrational state can be fitted by a set of rotational and centrifugal constants with deviations within a few kHz, indicating that the 30013e state is free of perturbations. These precise isotopic line positions will be utilized to improve the Hamiltonian model and quantitative remote sensing of carbon dioxide. Moreover, they will help to track changes in the carbon source and sink through isotopic analysis | ||
| 650 | 4 | |a Journal Article | |
| 700 | 1 | |a Cao, Fang-Hui |e verfasserin |4 aut | |
| 700 | 1 | |a Jiang, Shan |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, An-Wen |e verfasserin |4 aut | |
| 700 | 1 | |a Tan, Yan |e verfasserin |4 aut | |
| 700 | 1 | |a Sun, Y R |e verfasserin |4 aut | |
| 700 | 1 | |a Hu, Shui-Ming |e verfasserin |4 aut | |
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