Please use this identifier to cite or link to this item: http://hdl.handle.net/2067/42931
Title: High-Energy Proton-Beam-Induced Polymerization/Oxygenation of Hydroxynaphthalenes on Meteorites and Nitrogen Transfer from Urea: Modeling Insoluble Organic Matter?
Authors: Bizzarri, Bruno Mattia
Manini, Paola
Lino, Valeria
d'Ischia, Marco
Kapralov, Michail
Krasavin, Eugene
Mráziková, Klaudia
Šponer, Jiří
Šponer, Judit E
Di Mauro, Ernesto
Saladino, Raffaele 
Journal: CHEMISTRY-A EUROPEAN JOURNAL 
Issue Date: 2020
Abstract: 
Formation and structural modification of oxygenated polycyclic aromatic hydrocarbons (oxyPAHs) by UV irradiation on minerals have recently been proposed as a possible channel of PAH transformation in astrochemical and prebiotic scenarios of possible relevance for the origin of life. Herein, it is demonstrated that high-energy proton-beam irradiation in the presence of various meteorites, including stony iron, achondrite, and chondrite types, promotes the conversion of two representative oxyPAH compounds, 1-naphthol and 1,8-dihydroxynaphthalene, to complex mixtures of oxygenated and oligomeric derivatives. The main identified products include polyhydroxy derivatives, isomeric dimers encompassing benzofuran and benzopyran scaffolds, and, notably, a range of quinones and perylene derivatives. Addition of urea, a prebiotically relevant chemical precursor, expanded the range of identified species to include, among others, quinone diimines. Proton-beam irradiation of oxyPAH modulated by nitrogen-containing compounds such as urea is proposed as a possible contributory mechanism for the formation and processing of insoluble organic matter in meteorites and in prebiotic processes.
URI: http://hdl.handle.net/2067/42931
ISSN: 0947-6539
DOI: 10.1002/chem.202002318
Appears in Collections:A1. Articolo in rivista

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