0604967 - ÚFCH JH 2026 RIV US eng J - Článek v odborném periodiku
Sala, Leo Albert - Lyshchuk, Hlib - Nag, Pamir - Rousseau, P. - Maclot, S. - Domaracka, A. - Kočišek, Jaroslav
Decay of iron pentacarbonyl clusters upon interaction with heavy ions.
Physica Scripta. Roč. 100, č. 2 (2025), č. článku 025402. ISSN 0031-8949. E-ISSN 1402-4896
Grant CEP: GA MŠMT EH22_008/0004558
GRANT EU: European Commission(XE) 872494 - RADON
Institucionální podpora: RVO:61388955
Klíčová slova: beam-induced-deposition * focused electron-beam * low-energy electrons * negative-ions * nanofabrication * ionization * fe(co)(5) * fragmentation * spectroscopy * environment * clusters * ions * iron pentacarbonyl * mass spectrum * fragmentation * environment
Obor OECD: Physical chemistry
Impakt faktor: 2.6, rok: 2023 ; AIS: 0.395, rok: 2023
Způsob publikování: Open access
DOI: https://doi.org/10.1088/1402-4896/ada205

The present work is a continuation of our studies with iron pentacarbonyl, a model organometallic precursor for Focused Ion Beam-Induced Deposition (FIBID). Interactions of He2+(16 keV), Ne+(6 keV), Ne4+(40 keV), Ar2+(12 keV) and Ar8+(64 keV) projectile ions with [Fe(CO)5]n clusters are studied using TOF mass spectrometry. The clusters represent an intermediate between the gas phase and the bulk environment and can be used as a proxy for the processes in complex environments such as e.g. the nanostructure deposition. The addition of environment in the present study results in the observation of fragments with high kinetic energies ejected from clusters, an overall reduction of the fragmentation, and observation of a range of fragments associated with C-O bond dissociation, not observed for isolated molecules. On the other hand, the high efficiency of the Ne+ projectile in fragmenting the Fe(CO)5 isolated molecule is also observed in clusters.
Trvalý link: https://hdl.handle.net/11104/0362527