Reactivity and properties of dications generated by photoionization of 2,5-norbornadiene

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F13%3A10159274" target="_blank" >RIV/00216208:11310/13:10159274 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61388955:_____/13:00392683 RIV/61388963:_____/13:00392683

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.ijms.2012.12.002" target="_blank" >http://dx.doi.org/10.1016/j.ijms.2012.12.002</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ijms.2012.12.002" target="_blank" >10.1016/j.ijms.2012.12.002</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Reactivity and properties of dications generated by photoionization of 2,5-norbornadiene

Popis výsledku v původním jazyce

The production of C7Hn2+ (with n=6, 8) dications from 2,5-norbornadiene (NBD) and their reactivity toward Xe and N-2 are studied using multipole-based tandem mass spectrometry techniques coupled with ionization either by collisions with energetic electrons or with tunable VUV photons coming from the SOLEIL synchrotron facility. From the photoionization studies, an apparent double photoionization energy of (2)AE(NBD) = (22.80 +/- 0.08) eV is derived, while the appearance energy of the C7H62+ fragment isonly slightly higher at (23.08 +/- 0.10) eV and the hydrogen-depleted dication dominates the mass spectrum at photon energies above about 24 eV. Theoretical calculations predict the adiabatic (IE)-I-2(NBD) as about 1.26 eV lower than the experimental value, which is attributed to the occurrence of significant Franck-Condon effects. Concerning the formation of C7H62+, theory and experiment indicate that the dehydrogenation product corresponds to the cycloheptatrienylidene dication, as is

Název v anglickém jazyce

Reactivity and properties of dications generated by photoionization of 2,5-norbornadiene

Popis výsledku anglicky

The production of C7Hn2+ (with n=6, 8) dications from 2,5-norbornadiene (NBD) and their reactivity toward Xe and N-2 are studied using multipole-based tandem mass spectrometry techniques coupled with ionization either by collisions with energetic electrons or with tunable VUV photons coming from the SOLEIL synchrotron facility. From the photoionization studies, an apparent double photoionization energy of (2)AE(NBD) = (22.80 +/- 0.08) eV is derived, while the appearance energy of the C7H62+ fragment isonly slightly higher at (23.08 +/- 0.10) eV and the hydrogen-depleted dication dominates the mass spectrum at photon energies above about 24 eV. Theoretical calculations predict the adiabatic (IE)-I-2(NBD) as about 1.26 eV lower than the experimental value, which is attributed to the occurrence of significant Franck-Condon effects. Concerning the formation of C7H62+, theory and experiment indicate that the dehydrogenation product corresponds to the cycloheptatrienylidene dication, as is

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

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2013

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

336

Číslo periodika v rámci svazku

Feb 15

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

17-26

Kód UT WoS článku

000316713700002

EID výsledku v databázi Scopus

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