The reactivity of methanimine radical cation (H2CNH[rad]+) and its isomer aminomethylene (HCNH2[rad]+) with methane

Kód výsledku v IS VaVaI

RIV/61388955:_____/21:00542460 - isvavai.cz

Výsledek na webu

http://hdl.handle.net/11104/0319868

DOI - Digital Object Identifier

10.1016/j.cplett.2021.138611

Jazyk výsledku

angličtina

Název v původním jazyce

The reactivity of methanimine radical cation (H2CNH[rad]+) and its isomer aminomethylene (HCNH2[rad]+) with methane

Popis výsledku v původním jazyce

Experimental and theoretical studies are presented on the reactions of the isomeric radical cations H2CNHradical dot+ and HCNH2radical dot+ with CH4. Ionic isomers were generated selectively by VUV dissociative photoionization of azetidine and cyclopropylamine precursors respectively. Both exclusively give H2CNH2+ plus CH3radical dot as products, but differences are observed related to a competition between stripping and complex-mediated H-transfer. Astrochemical implications for Titan’s atmosphere are briefly discussed, where the presence of methanimine (H2CNH), a key prebiotic molecule and a potential precursor for tholins, is proposed on the basis of atmospheric models and the observation of CH2NH2+ ions in Cassini mass spectrometric data.

Název v anglickém jazyce

The reactivity of methanimine radical cation (H2CNH[rad]+) and its isomer aminomethylene (HCNH2[rad]+) with methane

Popis výsledku anglicky

Experimental and theoretical studies are presented on the reactions of the isomeric radical cations H2CNHradical dot+ and HCNH2radical dot+ with CH4. Ionic isomers were generated selectively by VUV dissociative photoionization of azetidine and cyclopropylamine precursors respectively. Both exclusively give H2CNH2+ plus CH3radical dot as products, but differences are observed related to a competition between stripping and complex-mediated H-transfer. Astrochemical implications for Titan’s atmosphere are briefly discussed, where the presence of methanimine (H2CNH), a key prebiotic molecule and a potential precursor for tholins, is proposed on the basis of atmospheric models and the observation of CH2NH2+ ions in Cassini mass spectrometric data.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

LTC20062: Reactivity of negative ions in the gas phase

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Chemical Physics Letters

ISSN

0009-2614

e-ISSN

1873-4448

Svazek periodika

775

Číslo periodika v rámci svazku

JUL 2021

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

138611

Kód UT WoS článku

000656477200002

EID výsledku v databázi Scopus

2-s2.0-85104947990