High Energy Radical Chemistry Formation of HCN- rich Atmospheres on early Earth

Ferus, Martin; Kubelík, Petr; Knížek, Antonín; Pastorek, Adam; Sutherland, J.D.; Civiš, Svatopluk

doi:https://dx.doi.org/10.1038/s41598-017-06489-1

Number of the records: 1

High Energy Radical Chemistry Formation of HCN- rich Atmospheres on early Earth

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SYSNO ASEP	0482798
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	High Energy Radical Chemistry Formation of HCN- rich Atmospheres on early Earth
Author(s)	Ferus, Martin (UFCH-W)_{ORCID, RID} Kubelík, Petr (UFCH-W)_{RID, ORCID} Knížek, Antonín (UFCH-W)_{ORCID, RID, SAI} Pastorek, Adam (UFCH-W)_ORCID Sutherland, J.D. (GB) Civiš, Svatopluk (UFCH-W)_{RID, ORCID, SAI}
Article number	6275
Source Title	Scientific Reports. - : Nature Publishing Group - ISSN 2045-2322 Roč. 7, č. 1 (2017)
Number of pages	9 s.
Language	eng - English
Country	GB - United Kingdom
Keywords	high-power laser ; transform emission-spectroscopy ; induced dielectric-breakdown ; prebiotic organic-synthesis ; nucleobase formation
Subject RIV	CF - Physical ; Theoretical Chemistry
OECD category	Physical chemistry
R&D Projects	GA17-05076S GA ČR - Czech Science Foundation (CSF)
	LM2015083 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
	LG15013 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Method of publishing	Open access
Institutional support	UFCH-W - RVO:61388955
UT WOS	000406260100079
EID SCOPUS	85025808278
DOI	10.1038/s41598-017-06489-1
Annotation	Recent results in prebiotic chemistry implicate hydrogen cyanide (HCN) as the source of carbon and nitrogen for the synthesis of nucleotide, amino acid and lipid building blocks. HCN can be produced during impact events by reprocessing of carbonaceous and nitrogenous materials from both the impactor and the atmosphere. It can also be produced from these materials by electrical discharge. Here we investigate the effect of high energy events on a range of starting mixtures representative of various atmosphere-impactor volatile combinations. Using continuously scanning time-resolved spectrometry, we have detected. CN radical and excited CO as the initially most abundant products. Cyano radicals and excited carbon monoxide molecules in particular are reactive, energy-rich species, but are resilient owing to favourable Franck-Condon factors. The subsequent reactions of these first formed excited species lead to the production of ground-state prebiotic building blocks, principally HCN.
Workplace	J. Heyrovsky Institute of Physical Chemistry
Contact	Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196
Year of Publishing	2018

Number of the records: 1