0604967 - ÚFCH JH 2026 RIV US eng J - Journal Article
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
R&D Projects: GA MŠMT EH22_008/0004558
EU Projects: European Commission(XE) 872494 - RADON
Institutional support: RVO:61388955
Keywords : 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
OECD category: Physical chemistry
Impact factor: 2.6, year: 2023 ; AIS: 0.395, rok: 2023
Method of publishing: 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.
Permanent Link: https://hdl.handle.net/11104/0362527