About the Formation of NH<sub>2</sub>OH<sup>+</sup> from Gas Phase Reactions under Astrochemical Conditions

We present here an analysis of several possible reactive pathways toward the formation of hydroxylamine under astrochemical conditions. The analysis is based on ab initio quantum chemistry calculations. Twenty-one bimolecular ion–molecule reactions have been studied and their thermodynamics presente...

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Main Authors: Gabriele Dilena, Simone Pistillo, Enrico Bodo
Format: Article
Language:English
Published: MDPI AG 2023-03-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/28/7/2932
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author Gabriele Dilena
Simone Pistillo
Enrico Bodo
author_facet Gabriele Dilena
Simone Pistillo
Enrico Bodo
author_sort Gabriele Dilena
collection DOAJ
description We present here an analysis of several possible reactive pathways toward the formation of hydroxylamine under astrochemical conditions. The analysis is based on ab initio quantum chemistry calculations. Twenty-one bimolecular ion–molecule reactions have been studied and their thermodynamics presented. Only one of these reactions is a viable direct route to hydroxylamine. We conclude that the contribution of gas-phase chemistry to hydroxylamine formation is probably negligible when compared to its formation via surface grain chemistry. However, we have found several plausible gas-phase reactions whose outcome is the hydroxylamine cation.
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spelling doaj.art-f73a84d54b3c4d2dbb3cbdc38d9cfa442023-11-17T17:11:04ZengMDPI AGMolecules1420-30492023-03-01287293210.3390/molecules28072932About the Formation of NH<sub>2</sub>OH<sup>+</sup> from Gas Phase Reactions under Astrochemical ConditionsGabriele Dilena0Simone Pistillo1Enrico Bodo2Chemistry Department, University of Rome “La Sapienza”, 00185 Rome, ItalyChemistry Department, University of Rome “La Sapienza”, 00185 Rome, ItalyChemistry Department, University of Rome “La Sapienza”, 00185 Rome, ItalyWe present here an analysis of several possible reactive pathways toward the formation of hydroxylamine under astrochemical conditions. The analysis is based on ab initio quantum chemistry calculations. Twenty-one bimolecular ion–molecule reactions have been studied and their thermodynamics presented. Only one of these reactions is a viable direct route to hydroxylamine. We conclude that the contribution of gas-phase chemistry to hydroxylamine formation is probably negligible when compared to its formation via surface grain chemistry. However, we have found several plausible gas-phase reactions whose outcome is the hydroxylamine cation.https://www.mdpi.com/1420-3049/28/7/2932interstellar mediumgas-phase chemistryhydroxylamine
spellingShingle Gabriele Dilena
Simone Pistillo
Enrico Bodo
About the Formation of NH<sub>2</sub>OH<sup>+</sup> from Gas Phase Reactions under Astrochemical Conditions
Molecules
interstellar medium
gas-phase chemistry
hydroxylamine
title About the Formation of NH<sub>2</sub>OH<sup>+</sup> from Gas Phase Reactions under Astrochemical Conditions
title_full About the Formation of NH<sub>2</sub>OH<sup>+</sup> from Gas Phase Reactions under Astrochemical Conditions
title_fullStr About the Formation of NH<sub>2</sub>OH<sup>+</sup> from Gas Phase Reactions under Astrochemical Conditions
title_full_unstemmed About the Formation of NH<sub>2</sub>OH<sup>+</sup> from Gas Phase Reactions under Astrochemical Conditions
title_short About the Formation of NH<sub>2</sub>OH<sup>+</sup> from Gas Phase Reactions under Astrochemical Conditions
title_sort about the formation of nh sub 2 sub oh sup sup from gas phase reactions under astrochemical conditions
topic interstellar medium
gas-phase chemistry
hydroxylamine
url https://www.mdpi.com/1420-3049/28/7/2932
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