https://doi.org/10.1140/epjd/e2005-00122-9
Formation of fullerene dianions in a Penning trap
Institut für Physik, Ernst-Moritz-Arndt-Universität Greifswald,
Domstr. 10a, 17487 Greifswald, Germany
Corresponding author: a schweikhard@physik.uni-greifswald.de
Received:
6
September
2004
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
