Determining the Attenuation Factor in Molecular Wires Featuring Covalent and Noncovalent Tectons.

Hybrid covalent/supramolecular porphyrin-fullerene structures were synthesized as highly efficient molecular wires with a remarkably low attenuation factor (β=0.07±0.01 Å-1 ). Hydrogen-bonding interactions and p-phenylene oligomers of different lengths are responsible for efficient electron transfer in the molecular wires.