Cis- and trans-perfluorodecalin: Infrared spectra, radiative efficiency and global warming potential
| Autor: | Paul J. Godin, Kimberly Strong, Karine Le Bris, Jasmine DeZeeuw |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
Radiation Materials science 010504 meteorology & atmospheric sciences Absorption spectroscopy Analytical chemistry Infrared spectroscopy 01 natural sciences Atomic and Molecular Physics and Optics Spectral line Fourier transform spectroscopy 03 medical and health sciences chemistry.chemical_compound 030104 developmental biology Nuclear magnetic resonance Perfluorodecalin chemistry 13. Climate action Density functional theory Absorption (electromagnetic radiation) Spectroscopy Cis–trans isomerism 0105 earth and related environmental sciences |
| Zdroj: | Journal of Quantitative Spectroscopy and Radiative Transfer. 203:538-541 |
| ISSN: | 0022-4073 |
| DOI: | 10.1016/j.jqsrt.2017.01.011 |
| Popis: | Perfluorodecalin (PFD) is a molecule used in various medical applications for its capacity to dissolve gases. This potent greenhouse gas was detected for the first time in the atmosphere in 2005. We present infrared absorption cross-section spectra of a pure vapour of cis - and trans -perfluorodecalin at a resolution of 0.1 cm −1 . Measurements were performed in the 560–3000 cm −1 spectral range using Fourier transform spectroscopy. The spectra have been compared with previous experimental data and theoretical calculations by density functional theory. The new experimental absorption cross-sections have been used to calculate a lifetime-corrected radiative efficiency at 300 K of 0.62 W m −2 ppb −1 and 0.57 W.m −2 .ppb −1 for the cis and trans isomers respectively. This leads to a 100-year time horizon global warming potential of 8030 for cis -PFD and 7440 for trans -PFD. |
| Databáze: | OpenAIRE |
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