Suppression of low-energy dissociative electron attachment in Fe(CO)5 upon clustering

0480172 - ÚFCH JH 2018 RIV DE eng J - Článek v odborném periodiku
Lengyel, Jozef - Papp, P. - Matejčík, Š. - Kočišek, Jaroslav - Fárník, Michal - Fedor, Juraj
Suppression of low-energy dissociative electron attachment in Fe(CO)5 upon clustering.
Beilstein Journal of Nanotechnology. Roč. 8, č. 1 (2017), s. 2200-2207. ISSN 2190-4286. E-ISSN 2190-4286
Grant CEP: GA ČR GA17-04844S; GA ČR(CZ) GA17-04068S; GA ČR GJ16-10995Y
Grant ostatní: COST(XE) CM1301
Institucionální podpora: RVO:61388955
Klíčová slova: aggregation effects * FEBID * dissociative electron attachment
Obor OECD: Physical chemistry
Impakt faktor: 2.968, rok: 2017
Způsob publikování: Open access

In this work, we probe anion production upon electron interaction with Fe(CO)5 clusters using two complementary cluster-beam setups. We have identified two mechanisms that lead to synthesis of complex anions with mixed Fe/CO composition. These two mechanisms are operative in distinct electron energy ranges. It is shown that the elementary decomposition mechanism that has received perhaps the most attention in recent years (i.e., dissociative electron attachment at energies close to 0 eV) becomes suppressed upon increasing aggregation of iron pentacarbonyl. We attribute this suppression to the electrostatic shielding of a long-range interaction that strongly enhances the dissociative electron attachment in isolated Fe(CO)5.
Trvalý link: http://hdl.handle.net/11104/0276058