Disociace a reakce dikationtů a kationtů indikované srážkou s povrchem: Srážky dikationtů C7H82+, C7H72+, a C7H62+ a srovnání s příslušnými kationty C7H8+ a C7H7+

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F06%3A00032505" target="_blank" >RIV/61388955:_____/06:00032505 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Surface-induced dissociation and reactions of dications and cations: Collisions of dications C7H82+, C7H72+, and C7H62+ and a comparison with the respective cations C7D8+ and C7H7+

Popis výsledku v původním jazyce

Collisions of cations and dications C7Hg8+/2+, C7H7+/2+, and C7H62+ generated by electron ionization of toluene with a highly oriented pyrolytic graphite surface were investigated in scattering experiments at the incident energy of 25.3 eV, incident angle of 60 degrees (with respect to the surface normal) and at surface temperatures of 300 and 900 K. The survival probability of ions was rather large, about 10% for the cations and about twice as large for the dications. Only singly-charged ions were observed in the mass spectra of product ions for both singly- and doubly-charged incident ions. In agreement with earlier conclusion of Cooks et al., the primary process in surface collisions of the dications is a single-charge exchange between the approaching dication and the surface at larger distances; hence, the mass spectrum of product ions in fact results from surface interactions of internally excited monocations.

Název v anglickém jazyce

Surface-induced dissociation and reactions of dications and cations: Collisions of dications C7H82+, C7H72+, and C7H62+ and a comparison with the respective cations C7D8+ and C7H7+

Popis výsledku anglicky

Collisions of cations and dications C7Hg8+/2+, C7H7+/2+, and C7H62+ generated by electron ionization of toluene with a highly oriented pyrolytic graphite surface were investigated in scattering experiments at the incident energy of 25.3 eV, incident angle of 60 degrees (with respect to the surface normal) and at surface temperatures of 300 and 900 K. The survival probability of ions was rather large, about 10% for the cations and about twice as large for the dications. Only singly-charged ions were observed in the mass spectra of product ions for both singly- and doubly-charged incident ions. In agreement with earlier conclusion of Cooks et al., the primary process in surface collisions of the dications is a single-charge exchange between the approaching dication and the surface at larger distances; hence, the mass spectrum of product ions in fact results from surface interactions of internally excited monocations.

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)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2006

Kód důvěrnosti údajů

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

Název periodika

International Journal of Mass Spectrometry

ISSN

1387-3806

e-ISSN

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Svazek periodika

249-250

Číslo periodika v rámci svazku

-

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

162-170

Kód UT WoS článku

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EID výsledku v databázi Scopus

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