Photodissociation dynamics of ethanethiol in clusters: complementary information from velocity map imaging, mass spectrometry and calculations

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F15%3A00442955" target="_blank" >RIV/61388955:_____/15:00442955 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22340/15:43900334

Výsledek na webu

<a href="http://dx.doi.org/10.1039/C5CP00367A" target="_blank" >http://dx.doi.org/10.1039/C5CP00367A</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/C5CP00367A" target="_blank" >10.1039/C5CP00367A</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Photodissociation dynamics of ethanethiol in clusters: complementary information from velocity map imaging, mass spectrometry and calculations

Popis výsledku v původním jazyce

We investigate the solvent effects on photodissociation dynamics of the S?H bond in ethanethiol CH3CH2SH (EtSH). The H fragment images are recorded by velocity map imaging (VMI) at 243 nm in various expansion regimes ranging from isolated molecules to clusters of different sizes and compositions. The VMI experiment is accompanied by electron ionization mass spectrometry using a reflectron time-of-flight mass spectrometer (RTOFMS). The experimental data are interpreted using ab initio calculations. The direct S?H bond fission results in a peak of fast fragments at Ekin(H) 1.25 eV with a partly resolved structure corresponding to vibrational levels of the CH3CH2S cofragment. Clusters of different nature ranging from dimers to large (EtSH)N, N 10, clusters and to ethanethiol clusters embedded in larger argon ?snowballs are investigated. In the clusters a sharp peak of near-zero kinetic energy fragments occurs due to the caging. The dynamics of the fragment caging is pictured theoretically

Název v anglickém jazyce

Photodissociation dynamics of ethanethiol in clusters: complementary information from velocity map imaging, mass spectrometry and calculations

Popis výsledku anglicky

We investigate the solvent effects on photodissociation dynamics of the S?H bond in ethanethiol CH3CH2SH (EtSH). The H fragment images are recorded by velocity map imaging (VMI) at 243 nm in various expansion regimes ranging from isolated molecules to clusters of different sizes and compositions. The VMI experiment is accompanied by electron ionization mass spectrometry using a reflectron time-of-flight mass spectrometer (RTOFMS). The experimental data are interpreted using ab initio calculations. The direct S?H bond fission results in a peak of fast fragments at Ekin(H) 1.25 eV with a partly resolved structure corresponding to vibrational levels of the CH3CH2S cofragment. Clusters of different nature ranging from dimers to large (EtSH)N, N 10, clusters and to ethanethiol clusters embedded in larger argon ?snowballs are investigated. In the clusters a sharp peak of near-zero kinetic energy fragments occurs due to the caging. The dynamics of the fragment caging is pictured theoretically

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

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Physical Chemistry Chemical Physics

ISSN

1463-9076

e-ISSN

—

Svazek periodika

17

Číslo periodika v rámci svazku

39

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

25734-25741

Kód UT WoS článku

000362291300009

EID výsledku v databázi Scopus

2-s2.0-84942777715