Surface-induced Reactions and Dissociations of Small Acetone, Acetonitrile and Ethanol Cluster Ions:Competitive Chemical Reactions, Dissociation Mechanisms and Determination of Dissociation Energy.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F03%3A54030017" target="_blank" >RIV/61388955:_____/03:54030017 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61388955:_____/03:00309432

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Surface-induced Reactions and Dissociations of Small Acetone, Acetonitrile and Ethanol Cluster Ions:Competitive Chemical Reactions, Dissociation Mechanisms and Determination of Dissociation Energy.

Popis výsledku v původním jazyce

Using a recently commissioned tandem mass spectrometer system, BESTOF, we have carried out systematic investigations (using also deuterated molecules) on the interaction of various molecular cluster ions (including stoichiometric acetone and acetonitrilecluster ions and protonated ethanol cluster ions) with a hydrocarbon-covered stainless steel surface. Besides observing competitive chemical reactions for the stoichiometric cluster ions driven by the energy transfer in the surface collision (intra-cluster reactions versus surface H-atom pick-up reactions), we were able to see clear evidence that unimolecular dissociation kinetics determines the production of the observed decay patterns in collision energy-resolved mass spectra (CERMS). From characteristic shifts in these CERMS we can deduce corresponding binding energies, i.e., D((CD3CN2+-CD3CN = 0.66 eV, D((C2H5OH2H+-C2H5OH = 0.95 eV, and for the protonated dimer D((C2H5OH)H+-C2H5OH = 1.6 eV.

Název v anglickém jazyce

Surface-induced Reactions and Dissociations of Small Acetone, Acetonitrile and Ethanol Cluster Ions:Competitive Chemical Reactions, Dissociation Mechanisms and Determination of Dissociation Energy.

Popis výsledku anglicky

Using a recently commissioned tandem mass spectrometer system, BESTOF, we have carried out systematic investigations (using also deuterated molecules) on the interaction of various molecular cluster ions (including stoichiometric acetone and acetonitrilecluster ions and protonated ethanol cluster ions) with a hydrocarbon-covered stainless steel surface. Besides observing competitive chemical reactions for the stoichiometric cluster ions driven by the energy transfer in the surface collision (intra-cluster reactions versus surface H-atom pick-up reactions), we were able to see clear evidence that unimolecular dissociation kinetics determines the production of the observed decay patterns in collision energy-resolved mass spectra (CERMS). From characteristic shifts in these CERMS we can deduce corresponding binding energies, i.e., D((CD3CN2+-CD3CN = 0.66 eV, D((C2H5OH2H+-C2H5OH = 0.95 eV, and for the protonated dimer D((C2H5OH)H+-C2H5OH = 1.6 eV.

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

<a href="/cs/project/GA203%2F00%2F0632" target="_blank" >GA203/00/0632: Chemie iontů v plynné fázi a ve srážkách s povrchy</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2003

Kód důvěrnosti údajů

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

Název periodika

New Journal of Physics

ISSN

1367-2630

e-ISSN

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Svazek periodika

5

Číslo periodika v rámci svazku

N/A

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

18

Strana od-do

"9.1"-"9.18"

Kód UT WoS článku

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EID výsledku v databázi Scopus

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