Electron ionization of helium droplets containing C60 and alcohol clusters
| Autor: | Marcelo Goulart, Paul Scheier, Andrew M. Ellis, Fabio Zappa, Stefan Ralser, Peter Bartl |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Ethanol
Fullerene Analytical chemistry General Physics and Astronomy Alcohol 010402 general chemistry 01 natural sciences 0104 chemical sciences Ion chemistry.chemical_compound chemistry 0103 physical sciences Cluster (physics) Molecule Methanol Physical and Theoretical Chemistry Atomic physics 010303 astronomy & astrophysics Electron ionization |
| Zdroj: | Physical Chemistry Chemical Physics. 19:24197-24201 |
| ISSN: | 1463-9084 1463-9076 |
| DOI: | 10.1039/c7cp02994b |
| Popis: | We report a mass spectrometric investigation of (C60)n clusters mixed with either methanol or ethanol clusters inside helium nanodroplets. The abundance of ion products produced by electron ionization shows marked differences compared with pure methanol/ethanol clusters without C60 [M. Goulart, P. Bartl, A. Mauracher, F. Zappa, A. M. Ellis and P. Scheier, Phys. Chem. Chem. Phys., 2013, 15, 3577], where clusters containing in excess of a hundred alcohol monomers were observed. In contrast, under identical conditions concerning He droplet size and alcohol pickup pressure, only a small number of alcohol molecules become attached to the fullerene ions. Our results suggest that each fullerene cluster acts as a charge sink, which hampers alcohol cluster formation, as well as intra-cluster ion-molecule reactions. The appearance of specific ‘magic number’ peaks suggests an enhanced probability for the attachment of small alcohol rings to (C60)n+ clusters. |
| Databáze: | OpenAIRE |
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