Počet záznamů: 1
Hydrated Formic Acid Clusters and their Interaction with Electrons
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SYSNO ASEP 0584315 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Hydrated Formic Acid Clusters and their Interaction with Electrons Tvůrce(i) Li, K. (DE)
Ďurana, Jozef (UFCH-W)
Kocábková, Barbora (UFCH-W)
Pysanenko, Andriy (UFCH-W) RID, ORCID
Yan, Y. (DE)
Ončák, M. (AT)
Fárník, Michal (UFCH-W) RID, ORCID
Lengyel, J. (AT)Zdroj.dok. ChemPhysChem. - : Wiley - ISSN 1439-4235
(2024)Poč.str. 8 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova hydrogen bonds ; ion-molecule reactions ; ionization ; mass spectrometry ; solvent effects Vědní obor RIV CF - Fyzikální chemie a teoretická chemie Obor OECD Physical chemistry CEP GA24-11390S GA ČR - Grantová agentura ČR Způsob publikování Open access Institucionální podpora UFCH-W - RVO:61388955 UT WOS 001180593300001 EID SCOPUS 85186848821 DOI 10.1002/cphc.202400071 Anotace We investigate ion formation in hydrated formic acid (FA) clusters upon collision with electrons of variable energy, focusing on electron ionization at 70 eV (EI) and low-energy (1.5–15 eV) electron attachment (EA). To uncover details about the composition of neutral clusters, we aim to elucidate the ion formation processes in FAM ⋅ WN clusters initiated by interaction with electrons and determine the extent of cluster fragmentation. EI predominantly produces protonated [FAm+H]+ ions, and in FA-rich clusters, the stable ring structures surrounding H3O+ ions are formed. In contrast, EA leads to a competition between the formation of intact [FAm ⋅ Wn]− and dissociated [FAm ⋅ Wn−H]− fragment ions, influenced by the cluster size, level of hydration, and electron energy. Our findings reveal a predisposition of low-energy EA towards forming [FAm ⋅ Wn]−, while higher electron energies tend to favor the formation of [FAm ⋅ Wn−H]− due to intracluster ion-molecule reactions. The comparison of positive and negative ion spectra suggests that the mass spectra of FA-rich clusters may indicate their actual size and composition. On the other hand, the more weakly bound water evaporation from the clusters depends strongly on the ionization. Thus, for the hydrated clusters, the neutral cluster size can hardly be estimated from the mass spectra. Pracoviště Ústav fyzikální chemie J.Heyrovského Kontakt Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Rok sběru 2025 Elektronická adresa https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/cphc.202400071
Počet záznamů: 1