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Mass spectrometry of hydrogen bonded clusters of heterocyclic molecules: Electron ionization vs. photoionization
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SYSNO ASEP 0355369 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Mass spectrometry of hydrogen bonded clusters of heterocyclic molecules: Electron ionization vs. photoionization Tvůrce(i) Poterya, Viktoriya (UFCH-W) RID, ORCID
Tkáč, Ondřej (UFCH-W)
Fedor, Juraj (UFCH-W) ORCID
Fárník, Michal (UFCH-W) RID, ORCID
Slavíček, P. (CZ)
Buck, U. (DE)Zdroj.dok. International Journal of Mass Spectrometry. - : Elsevier - ISSN 1387-3806
Roč. 290, 2-3 (2010), s. 85-93Poč.str. 9 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova cluster photochemistry ; hydrogen bonded clusters ; heterocyclic molecule Vědní obor RIV CF - Fyzikální chemie a teoretická chemie CEP KAN400400651 GA AV ČR - Akademie věd KJB400400902 GA AV ČR - Akademie věd GA203/09/0422 GA ČR - Grantová agentura ČR CEZ AV0Z40400503 - UFCH-W (2005-2011) UT WOS 000275258700003 DOI 10.1016/j.ijms.2009.12.007 Anotace Clusters of small heteroaromatic ring molecules pyrrole, imidazole and pyrazole were studied in a molecular beam experiment. Neutral cluster size distributions under various expansion conditions were probed by a scattering experiment with a He-atom beam. The clusters were ionized by electrons and their mass spectra were measured by a quadrupole mass spectrometer. Alternatively, the ionization was achieved by a non-resonant subsequent multiphoton process with 193 nm photons and the time-of-flight mass spectra were recorded. (1) The differences in the methods of cluster ionization, namely subsequent multiphoton and single photon ionization, and electron ionization are discussed. (2) More importantly, the differences between the ionization of pyrrole clusters on the one side, and imidazole and pyrazole clusters on the other side are studied. Pracoviště Ústav fyzikální chemie J.Heyrovského Kontakt Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Rok sběru 2012
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