Protonated ions as systemic trapping agents for noble gases: From electronic structure to radiative association
| العنوان: | Protonated ions as systemic trapping agents for noble gases: From electronic structure to radiative association |
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| المؤلفون: | Julien Pilmé, Ozge Ozgurel, O. Mousis, F. Pauzat, Y. Ellinger, Marie-Christine Bacchus-Montabonel |
| المساهمون: | Laboratoire de chimie théorique (LCT), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut Lumière Matière [Villeurbanne] (ILM), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Astrophysique de Marseille (LAM), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Centre National d'Études Spatiales [Toulouse] (CNES), Univers, Transport, Interfaces, Nanostructures, Atmosphère et environnement, Molécules (UMR 6213) (UTINAM), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS) |
| المصدر: | Journal of Chemical Physics Journal of Chemical Physics, American Institute of Physics, 2017, 147 (13), pp.134305. ⟨10.1063/1.4994630⟩ Journal of Chemical Physics, 2017, 147 (13), pp.134305. ⟨10.1063/1.4994630⟩ |
| سنة النشر: | 2017 |
| مصطلحات موضوعية: | Nebula, Argon, Krypton, General Physics and Astronomy, chemistry.chemical_element, 010402 general chemistry, 01 natural sciences, 7. Clean energy, 0104 chemical sciences, Ion, [CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry, Xenon, chemistry, 13. Climate action, 0103 physical sciences, Radiative transfer, Physical and Theoretical Chemistry, Atomic physics, Atmosphere of Titan, Formation and evolution of the Solar System, 010303 astronomy & astrophysics |
| الوصف: | International audience; The deficiencies of argon, krypton, and xenon observed in the atmosphere of Titan as well as anticipated in some comets might be related to a scenario of sequestration by H+3H3+ in the gas phase at the early evolution of the solar nebula. The chemical process implied is a radiative association, evaluated as rather efficient in the case of H+3H3+, especially for krypton and xenon. This mechanism of chemical trapping might not be limited to H+3H3+ only, considering that the protonated ions produced in the destruction of H+3H3+ by its main competitors present in the primitive nebula, i.e., H2O, CO, and N2, might also give stable complexes with the noble gases. However the effective efficiency of such processes is still to be proven. Here, the reactivity of the noble gases Ar, Kr, and Xe, with all protonated ions issued from H2O, CO, and N2, expected to be present in the nebula with reasonably high abundances, has been studied with quantum simulation method dynamics included. All of them give stable complexes and the rate coefficients of their radiative associations range from 10−16 to 10−19 cm3 s−1, which is reasonable for such reactions and has to be compared to the rates of 10−16 to 10−18 cm3 s−1, obtained with H+3H3+. We can consider this process as universal for all protonated ions which, if present in the primitive nebula as astrophysical models predict, should act as sequestration agents for all three noble gases with increasing efficiency from Ar to Xe. |
| تدمد: | 1089-7690 0021-9606 |
| DOI: | 10.1063/1.4994630⟩ |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa731f4e181b0115f6cd6a11a7f01f36 https://pubmed.ncbi.nlm.nih.gov/28987118 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....fa731f4e181b0115f6cd6a11a7f01f36 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 10897690 00219606 |
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| DOI: | 10.1063/1.4994630⟩ |