Origin of alkylphosphonic acids in the interstellar medium - Collection de l'Académie des systèmes complexes
Article Dans Une Revue Science Advances Année : 2019

Origin of alkylphosphonic acids in the interstellar medium

Résumé

For decades, the source of phosphorus incorporated into Earth’s first organisms has remained a fundamental, unsolved puzzle. Although contemporary biomolecules incorporate P(+V) in their phosphate moieties, the limited bioavailability of phosphates led to the proposal that more soluble P(+III) compounds served as the initial source of phosphorus. Here, we report via laboratory simulation experiments that the three simplest alkylphosphonic acids, soluble organic phosphorus P(+III) compounds, can be efficiently generated in interstellar, phosphine-doped ices through interaction with galactic cosmic rays. This discovery opens a previously overlooked avenue into the formation of key molecules of astrobiological significance and untangles basic mechanisms of a facile synthesis of phosphorus-containing organics in extraterrestrial ices, which can be incorporated into comets and asteroids before their delivery and detection on Earth such as in the Murchison meteorite
Fichier principal
Vignette du fichier
2019_Turner_SciAdv_Alkylphosphonic acids.pdf (1 Mo) Télécharger le fichier
Origine Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

hal-02322418 , version 1 (17-08-2021)

Identifiants

Citer

Andrew Turner, Matthew Abplanalp, Alexandre Bergantini, Robert Frigge, Cheng Zhu, et al.. Origin of alkylphosphonic acids in the interstellar medium. Science Advances , 2019, 5 (8), pp.eaaw4307. ⟨10.1126/sciadv.aaw4307⟩. ⟨hal-02322418⟩
114 Consultations
57 Téléchargements

Altmetric

Partager

More