Formation of fullerene dianions in a Penning trap
Institut für Physik, Ernst-Moritz-Arndt-Universität Greifswald,
Domstr. 10a, 17487 Greifswald, Germany
Corresponding author: a email@example.com
Published online: 13 July 2005
Fullerene dianions in the range C to C have been created by subjecting trapped fullerene monoanions to low energy electrons in a Penning trap. The dianion production was found to be a function of the trapping-potential depth and the time of interaction between the simultaneously stored monoanions and electrons. Under similar conditions the dianion yield depends on the size of the fullerenes with more than 10% of the trapped C ions forming dianions while the corresponding relative yield for C was less than 0.1%. The large difference can be explained by the repulsive Coulomb barrier and the second electron affinity of the fullerenes.
PACS: 36.40.-c – Atomic and molecular clusters / 36.40.Wa – Charged clusters
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2005