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Potapov A, McCoustra M. Physics and chemistry on the surface of cosmic dust grains: a laboratory view. INT REV PHYS CHEM 2021. [DOI: 10.1080/0144235x.2021.1918498] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Alexey Potapov
- Laboratory Astrophysics Group of the Max Planck Institute for Astronomy at the Friedrich Schiller University Jena, Jena, Germany
| | - Martin McCoustra
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh, UK
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Congiu E, Sow A, Nguyen T, Baouche S, Dulieu F. A new multi-beam apparatus for the study of surface chemistry routes to formation of complex organic molecules in space. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2020; 91:124504. [PMID: 33379980 DOI: 10.1063/5.0018926] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 11/07/2020] [Indexed: 06/12/2023]
Abstract
A multi-beam ultra-high vacuum apparatus is presented. In this article, we describe the design and construction of a new laboratory astrophysics experiment-VErs de NoUvelles Synthèses (VENUS)-that recreates the solid-state non-energetic formation conditions of complex organic molecules in dark clouds and circumstellar environments. The novel implementation of four operational differentially pumped beam lines will be used to determine the feasibility and the rates for the various reactions that contribute to formation of molecules containing more than six atoms. Data are collected by means of Fourier transform infrared spectroscopy and quadrupole mass spectrometry. The gold-coated sample holder reaches temperatures between 7 K and 400 K. The apparatus was carefully calibrated and the acquisition system was developed to ensure that experimental parameters are recorded as accurately as possible. A great effort has been made to have the beam lines converge toward the sample. Experiments have been developed to check the beam alignment using reacting systems of neutral species (NH3 and H2CO). Preliminary original results were obtained for the {NO + H} system, which shows that chemistry occurs only in the very first outer layer of the deposited species, that is, the chemical layer and the physical layer coincide. This article illustrates the characteristics, performance, and future potential of the new apparatus in view of the forthcoming launch of the James Webb Space Telescope. We show that VENUS will have a major impact through its contributions to surface science and astrochemistry.
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Affiliation(s)
- E Congiu
- CY Cergy Paris Université, Sorbonne Université, Observatoire de Paris, PSL University, CNRS, LERMA, F-95000 Cergy, France
| | - A Sow
- CY Cergy Paris Université, Sorbonne Université, Observatoire de Paris, PSL University, CNRS, LERMA, F-95000 Cergy, France
| | - T Nguyen
- CY Cergy Paris Université, Sorbonne Université, Observatoire de Paris, PSL University, CNRS, LERMA, F-95000 Cergy, France
| | - S Baouche
- CY Cergy Paris Université, Sorbonne Université, Observatoire de Paris, PSL University, CNRS, LERMA, F-95000 Cergy, France
| | - F Dulieu
- CY Cergy Paris Université, Sorbonne Université, Observatoire de Paris, PSL University, CNRS, LERMA, F-95000 Cergy, France
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Balabanoff ME, Ruzi M, Anderson DT. Signatures of a quantum diffusion limited hydrogen atom tunneling reaction. Phys Chem Chem Phys 2018; 20:422-434. [DOI: 10.1039/c7cp05064j] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We are studying the details of hydrogen atom (H atom) quantum diffusion in parahydrogen quantum solids in an effort to better understand H atom transport and reactivity under these conditions.
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Affiliation(s)
| | - Mahmut Ruzi
- Department of Chemistry
- University of Wyoming
- Laramie
- USA
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Haupa KA, Tielens AGGM, Lee YP. Reaction of H + HONO in solid para-hydrogen: infrared spectrum of ˙ONH(OH). Phys Chem Chem Phys 2017; 19:16169-16177. [DOI: 10.1039/c7cp02621h] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydrogenation reactions in the N/O chemical network are important for an understanding of the mechanism of formation of organic molecules in dark interstellar clouds, but many reactions remain unknown.
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Affiliation(s)
- Karolina Anna Haupa
- Department of Applied Chemistry and Institute of Molecular Science
- National Chiao Tung University
- Hsinchu 30010
- Taiwan
| | | | - Yuan-Pern Lee
- Department of Applied Chemistry and Institute of Molecular Science
- National Chiao Tung University
- Hsinchu 30010
- Taiwan
- Institute of Atomic and Molecular Sciences
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Zins EL, Krim L. Hydrogenation processes from hydrogen peroxide: an investigation in Ne matrix for astrochemical purposes. RSC Adv 2014. [DOI: 10.1039/c4ra01920b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Hydrogenation processes of hydrogen peroxide leading to the formation of water.
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Affiliation(s)
- Emilie-Laure Zins
- Sorbonne Universités
- UPMC Univ Paris 06
- Paris, France
- CNRS
- Paris, France
| | - Lahouari Krim
- Sorbonne Universités
- UPMC Univ Paris 06
- Paris, France
- CNRS
- Paris, France
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