Adsorption of helium on isolated C60 and C70 anions
作者： Martina Harnisch , Nikolaus Weinberger , Stephan Denifl , Paul Scheier , Olof Echt
DOI: 10.1080/00268976.2015.1018357
关键词: Chemical physics 、 Doping 、 Fullerene 、 Helium atom 、 Helium 、 Ion 、 Adsorption 、 Atom 、 Dissociation (chemistry) 、 Atomic physics 、 Chemistry
摘要: Adsorption of helium on free, negatively charged fullerenes is studied in this work. Helium nanodroplets have been doped with and ionised by electron attachment. For suitable experimental conditions, C−60 C−70 anions are found to be complexed a large number atoms. Prominent anomalies the ion abundances indicate high stability commensurate 1×1 phase which all hollow adsorption sites occupied one atom each. The energy for an additional about 40% less than atoms layer, similar our previous findings fullerene cations agreement theoretical dissociation energies. Similarly, anomaly occurs when 60 attached or 65 C−70. C60, coincides observed cationic complexes but C70 it does not. Implications these features discussed light several studies neutral positively he...
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