Exceptionally Small Attenuation Factors in Molecular Wires

Molecular-wire behavior, that is, an exceptionally small attenuation factor (β) of 0.01 ± 0.005 Å<sup>-1</sup>, has been established in novel C<sub>60</sub>-based donor−acceptor ensembles covalently connected through a series of fully conjugated phenylenevinylene oligomers of precise length and constitution.