152489.fig.008a
(a)
152489.fig.008b
(b)
152489.fig.008c
(c)
Figure 8: Electricfield associated with neutral and charged fullerenes, ( ) at the center of a hydrogen molecule located on top of hexagonal ring (a). Hydrogen charge variations induced by an electric field of  V/m parallel (b) and perpendicular (c) to the molecule axis. From [22].