The Si(3P)+SO2 reaction and its astrochemical implications

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  • Presentation type: Apresentação de Pôster / Poster Communications
  • Track: Computational Chemistry
  • Keywords: Silicon; astrochemistry; DFT calculation;

Authors:

  • 1 Centro Federal de Educação Tecnológica de Minas Gerais
  • 2 Universidade Federal de Ouro Preto

The Si(3P)+SO2 reaction and its astrochemical implications

Danilo Rocha

Centro Federal de Educação Tecnológica de Minas Gerais

Abstract

SiO and SiS are important silicon bearing species for astrochemistry, and have been observed in several regions of the interstellar medium.

In this work we studied the Si+SO2 reaction to verify if it is related to the abundances of SiS, SiO and other species in space.

We predict that Si+SO2 exothermically yields the monoxides SiO and SO, and is not a source of SiS.

As a contribution to the field, our results suggest a new possible neutral-neutral source of SiO in space, to be included in astrochemical databases.

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