Photoinduced Processes in Hydrogen Bonded System: Photodissociation of Imidazole Clusters

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F09%3A00022871" target="_blank" >RIV/60461373:22340/09:00022871 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61388955:_____/09:00341710

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Photoinduced Processes in Hydrogen Bonded System: Photodissociation of Imidazole Clusters

Popis výsledku v původním jazyce

The photodissociation of imidazole in hydrogen bonded clusters has been studied at photodissociation wavelengths 243 and 193 nm. Imidazole clusters of different mean cluster sizes n approximate to 3 and 6 have been produced in expansions with He and Ar carrier gases, and the mean cluster sizes were determined by mass spectrometric and crossed beam scattering experiments. Simultaneously, the (C3N2H4)(n) clusters were studied by ab initio calculations for n up to 4 molecules, confirming the hydrogen bondN-H center dot center dot center dot N motif in the clusters. The measured H-fragment kinetic energy distribution spectra exhibit a bimodal character similar to the KEDs found for the bare molecule.(1) At 243 run the fast H-atoms originate from the direct dissociation process on the repulsive pi sigma* state, and the slow component results from the dynamics Populating the vibrationally hot ground state via all S-1/S-0 conical intersection. In the clusters the contribution of the slow com

Název v anglickém jazyce

Photoinduced Processes in Hydrogen Bonded System: Photodissociation of Imidazole Clusters

Popis výsledku anglicky

The photodissociation of imidazole in hydrogen bonded clusters has been studied at photodissociation wavelengths 243 and 193 nm. Imidazole clusters of different mean cluster sizes n approximate to 3 and 6 have been produced in expansions with He and Ar carrier gases, and the mean cluster sizes were determined by mass spectrometric and crossed beam scattering experiments. Simultaneously, the (C3N2H4)(n) clusters were studied by ab initio calculations for n up to 4 molecules, confirming the hydrogen bondN-H center dot center dot center dot N motif in the clusters. The measured H-fragment kinetic energy distribution spectra exhibit a bimodal character similar to the KEDs found for the bare molecule.(1) At 243 run the fast H-atoms originate from the direct dissociation process on the repulsive pi sigma* state, and the slow component results from the dynamics Populating the vibrationally hot ground state via all S-1/S-0 conical intersection. In the clusters the contribution of the slow com

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

2009

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

113

Číslo periodika v rámci svazku

52

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

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Kód UT WoS článku

000273263700050

EID výsledku v databázi Scopus

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