A twist on the reaction of the CN radical with methylamine in the interstellar medium: new hints from a state-of-the-art quantum-chemical study

A twist on the reaction of the CN radical with methylamine in the interstellar medium: new hints from a state-of-the-art quantum-chemical study

ABSTRACT Despite the fact that the majority of current models assume that interstellar complex organic molecules (iCOMs) are formed on dust–grain surfaces, there is some evidence that neutral gas-phase reactions play an important role. In this paper, we investigate the reaction occurring in the gas...

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Veröffentlicht in:Monthly notices of the Royal Astronomical Society 2020-08, Vol.496 (4), p.4298-4310
Hauptverfasser: Puzzarini, Cristina, Salta, Zoi, Tasinato, Nicola, Lupi, Jacopo, Cavallotti, Carlo, Barone, Vincenzo
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container_issue 4
container_start_page 4298
container_title Monthly notices of the Royal Astronomical Society
container_volume 496
creator Puzzarini, Cristina
Salta, Zoi
Tasinato, Nicola
Lupi, Jacopo
Cavallotti, Carlo
Barone, Vincenzo
description ABSTRACT Despite the fact that the majority of current models assume that interstellar complex organic molecules (iCOMs) are formed on dust–grain surfaces, there is some evidence that neutral gas-phase reactions play an important role. In this paper, we investigate the reaction occurring in the gas phase between methylamine (CH3NH2) and the cyano (CN) radical, for which only fragmentary and/or inaccurate results have been reported to date. This case study allows us to point out the pivotal importance of employing quantum-chemical calculations at the state of the art. Since the two major products of the CH3NH2 + CN reaction, namely the CH3NH and CH2NH2 radicals, have not been spectroscopically characterized yet, some effort has been made for filling this gap.
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title A twist on the reaction of the CN radical with methylamine in the interstellar medium: new hints from a state-of-the-art quantum-chemical study
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