High-Energy Chemistry of Formamide: A Simpler Way for Nucleobase Formation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14740%2F14%3A00075655" target="_blank" >RIV/00216224:14740/14:00075655 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68081707:_____/14:00426059 RIV/61388955:_____/14:00426059

Výsledek na webu

<a href="http://pubs.acs.org/doi/ipdf/10.1021/jp411415p" target="_blank" >http://pubs.acs.org/doi/ipdf/10.1021/jp411415p</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/jp411415p" target="_blank" >10.1021/jp411415p</a>

Jazyk výsledku

angličtina

Název v původním jazyce

High-Energy Chemistry of Formamide: A Simpler Way for Nucleobase Formation

Popis výsledku v původním jazyce

The formation of nucleobases from formamide during a high-energy density event, i.e., the impact of an extraterrestrial body into the planetary atmosphere, was studied by irradiation of formamide ice and liquid samples with a high-power laser in the presence of potential catalysts. FTIR spectroscopy, time-resolved emission spectroscopy, and GC-MS were subsequently used to monitor the dissociation of this molecule into stable molecular fragments (HCN, H2O, HNCO, H-2, CO, and NH3) and unstable species (HNC, center dot CN, and center dot NH). The kinetic and thermodynamic models of the high-energy density event molecular dynamics have been suggested together with the reaction routes leading from the dissociation products to the nucleobases. In addition, using theoretical calculations, we propose a simple new reaction pathway for the formation of both pyrimidine and purine nucleobases involving center dot CN radical chemistry

Název v anglickém jazyce

High-Energy Chemistry of Formamide: A Simpler Way for Nucleobase Formation

Popis výsledku anglicky

The formation of nucleobases from formamide during a high-energy density event, i.e., the impact of an extraterrestrial body into the planetary atmosphere, was studied by irradiation of formamide ice and liquid samples with a high-power laser in the presence of potential catalysts. FTIR spectroscopy, time-resolved emission spectroscopy, and GC-MS were subsequently used to monitor the dissociation of this molecule into stable molecular fragments (HCN, H2O, HNCO, H-2, CO, and NH3) and unstable species (HNC, center dot CN, and center dot NH). The kinetic and thermodynamic models of the high-energy density event molecular dynamics have been suggested together with the reaction routes leading from the dissociation products to the nucleobases. In addition, using theoretical calculations, we propose a simple new reaction pathway for the formation of both pyrimidine and purine nucleobases involving center dot CN radical chemistry

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Physical Chemistry A

ISSN

1089-5639

e-ISSN

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Svazek periodika

118

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

18

Strana od-do

719-736

Kód UT WoS článku

000330610300007

EID výsledku v databázi Scopus

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