New physical insights: Formamide discharge decomposition and the role of fragments in the formation of large biomolecules

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F22%3A00558896" target="_blank" >RIV/61388955:_____/22:00558896 - isvavai.cz</a>

Výsledek na webu

<a href="http://hdl.handle.net/11104/0332391" target="_blank" >http://hdl.handle.net/11104/0332391</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.saa.2022.121322" target="_blank" >10.1016/j.saa.2022.121322</a>

Jazyk výsledku

angličtina

Název v původním jazyce

New physical insights: Formamide discharge decomposition and the role of fragments in the formation of large biomolecules

Popis výsledku v původním jazyce

In this work we present a time-resolved FTIR spectroscopic study on kinetics of atomic and molecular species, specifically CO, CN radical, N-2, HCN and CO2 generated in a glow discharge of formamide-nitrogen-water mixture in a helium buffer gas. Radicals such as NH, CH and OH have been proven to be fundamental stones of subsequent chemical reactions having a crucial role in a prebiotic synthesis of large organic molecules.This work contains three main goals. Firstly, we present our time-resolved spectra of formamide decomposition products and discuss the mechanism of collisional excitations between specific species. Secondly, according to our time resolution, we demonstrate and explain the band shape of CO's first overtone and the energy transfer between excited nitrogen and CO, present in our spectra. Lastly, we present theoretical results for the non-LTE modelling of the spectra using bi-temperature approach and a 1D harmonic Franck-Condon approach for the multi-molecule spectra of the formamide decomposition process in the 1800-5600 cm(-1) spectral range (C) 2022 Published by Elsevier B.V.

Název v anglickém jazyce

New physical insights: Formamide discharge decomposition and the role of fragments in the formation of large biomolecules

Popis výsledku anglicky

In this work we present a time-resolved FTIR spectroscopic study on kinetics of atomic and molecular species, specifically CO, CN radical, N-2, HCN and CO2 generated in a glow discharge of formamide-nitrogen-water mixture in a helium buffer gas. Radicals such as NH, CH and OH have been proven to be fundamental stones of subsequent chemical reactions having a crucial role in a prebiotic synthesis of large organic molecules.This work contains three main goals. Firstly, we present our time-resolved spectra of formamide decomposition products and discuss the mechanism of collisional excitations between specific species. Secondly, according to our time resolution, we demonstrate and explain the band shape of CO's first overtone and the energy transfer between excited nitrogen and CO, present in our spectra. Lastly, we present theoretical results for the non-LTE modelling of the spectra using bi-temperature approach and a 1D harmonic Franck-Condon approach for the multi-molecule spectra of the formamide decomposition process in the 1800-5600 cm(-1) spectral range (C) 2022 Published by Elsevier B.V.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

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

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy

ISSN

1386-1425

e-ISSN

1873-3557

Svazek periodika

278

Číslo periodika v rámci svazku

OCT 2022

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

15

Strana od-do

121322

Kód UT WoS článku

000803790300015

EID výsledku v databázi Scopus

2-s2.0-85129765126