Experimental Polarizability Transition Moments of CO<sub>2</sub> for Excited Vibrational States
The Raman spectrum of CO<sub>2</sub> from room temperature to 1800 K has been measured in a series of experiments. The differential Raman scattering cross-sections for the fundamental bands at 1285.41 cm<sup>−1</sup> and 1388.18 cm<sup>−1</sup> have been obtained...
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MDPI AG
2024-10-01
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| author | Carlos Álvarez Guzmán Tejeda José M. Fernández |
| author_facet | Carlos Álvarez Guzmán Tejeda José M. Fernández |
| author_sort | Carlos Álvarez |
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| description | The Raman spectrum of CO<sub>2</sub> from room temperature to 1800 K has been measured in a series of experiments. The differential Raman scattering cross-sections for the fundamental bands at 1285.41 cm<sup>−1</sup> and 1388.18 cm<sup>−1</sup> have been obtained from reference bands of H<sub>2</sub> and N<sub>2</sub> as intensity standards. The Raman cross-sections of CO<sub>2</sub> hot bands, involving vibrational energy levels up to 5000 cm<sup>−1</sup>, were derived from those of the fundamental bands. The Raman cross-sections obtained this way were reduced to transition moments of the mean molecular polarizability, which make it possible to simulate the Raman spectrum of CO<sub>2</sub> up to 2000 K. This paves the way for local or remote diagnostics of CO<sub>2</sub> in hot environments using Raman based techniques. |
| format | Article |
| id | doaj-art-34dd67bae28b4c83b2f7145d093c4ded |
| institution | Kabale University |
| issn | 1420-3049 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | MDPI AG |
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| series | Molecules |
| spelling | doaj-art-34dd67bae28b4c83b2f7145d093c4ded2024-11-08T14:38:21ZengMDPI AGMolecules1420-30492024-10-012921510310.3390/molecules29215103Experimental Polarizability Transition Moments of CO<sub>2</sub> for Excited Vibrational StatesCarlos Álvarez0Guzmán Tejeda1José M. Fernández2Laboratory of Molecular Fluid Dynamics, Instituto de Estructura de la Materia IEM-CSIC, C/Serrano 121, 28006 Madrid, SpainLaboratory of Molecular Fluid Dynamics, Instituto de Estructura de la Materia IEM-CSIC, C/Serrano 121, 28006 Madrid, SpainLaboratory of Molecular Fluid Dynamics, Instituto de Estructura de la Materia IEM-CSIC, C/Serrano 121, 28006 Madrid, SpainThe Raman spectrum of CO<sub>2</sub> from room temperature to 1800 K has been measured in a series of experiments. The differential Raman scattering cross-sections for the fundamental bands at 1285.41 cm<sup>−1</sup> and 1388.18 cm<sup>−1</sup> have been obtained from reference bands of H<sub>2</sub> and N<sub>2</sub> as intensity standards. The Raman cross-sections of CO<sub>2</sub> hot bands, involving vibrational energy levels up to 5000 cm<sup>−1</sup>, were derived from those of the fundamental bands. The Raman cross-sections obtained this way were reduced to transition moments of the mean molecular polarizability, which make it possible to simulate the Raman spectrum of CO<sub>2</sub> up to 2000 K. This paves the way for local or remote diagnostics of CO<sub>2</sub> in hot environments using Raman based techniques.https://www.mdpi.com/1420-3049/29/21/5103Raman spectroscopyCO<sub>2</sub>high temperaturepolarizability transition moments |
| spellingShingle | Carlos Álvarez Guzmán Tejeda José M. Fernández Experimental Polarizability Transition Moments of CO<sub>2</sub> for Excited Vibrational States Molecules Raman spectroscopy CO<sub>2</sub> high temperature polarizability transition moments |
| title | Experimental Polarizability Transition Moments of CO<sub>2</sub> for Excited Vibrational States |
| title_full | Experimental Polarizability Transition Moments of CO<sub>2</sub> for Excited Vibrational States |
| title_fullStr | Experimental Polarizability Transition Moments of CO<sub>2</sub> for Excited Vibrational States |
| title_full_unstemmed | Experimental Polarizability Transition Moments of CO<sub>2</sub> for Excited Vibrational States |
| title_short | Experimental Polarizability Transition Moments of CO<sub>2</sub> for Excited Vibrational States |
| title_sort | experimental polarizability transition moments of co sub 2 sub for excited vibrational states |
| topic | Raman spectroscopy CO<sub>2</sub> high temperature polarizability transition moments |
| url | https://www.mdpi.com/1420-3049/29/21/5103 |
| work_keys_str_mv | AT carlosalvarez experimentalpolarizabilitytransitionmomentsofcosub2subforexcitedvibrationalstates AT guzmantejeda experimentalpolarizabilitytransitionmomentsofcosub2subforexcitedvibrationalstates AT josemfernandez experimentalpolarizabilitytransitionmomentsofcosub2subforexcitedvibrationalstates |