Acid Enriched with Methanol: Formation of a Prebiotic Cluster in the Interstellar Medium.
Chemphyschem
; 23(22): e202200403, 2022 11 18.
Article
em En
| MEDLINE
| ID: mdl-35962978
Organic molecules are a potential source of prebiotic chemistry in the interstellar medium (ISM). Methanol (MetOH) is a very important source of more complex molecules. H3 O+ (aq) and Cl- (aq) are fundamental to living organisms and can be generated in the ISM from the dissociation of HCl with just four water molecules, yielding the (H3 O)+ (H2 O)3 Cl- ion-pair. Here, a detailed mechanism, based on density functional theory (DFT) and ab-initio (2nd order MÏller-Plesset perturbation theory, MP2) calculations, is suggested for the substitution reactions of these water molecules by MetOH. The time required for formation of an appreciable amount of the product ((H3 O)+ (MetOH)3 Cl- ) can be only few years. Such reaction can take place in Sagittarius B2, where HCl, H2 O and MetOH have already been identified and it can be an important source for the formation of more complex prebiotic structures.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Água
/
Metanol
Idioma:
En
Revista:
Chemphyschem
Assunto da revista:
BIOFISICA
/
QUIMICA
Ano de publicação:
2022
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Alemanha