Control over Charge Transfer through Molecular Wires by Temperature and Chemical Structure Modifications

A series of electron donor−acceptor arrays containing π-conjugated oligofluorenes (oFL) of variable length between a zinc porphyrin (ZnP) as electron donor and fullerene (C60) as electron acceptor have been prepared by following a convergent synthesis. The electronic interactions between the electroactive species were determined by cyclic voltammetry, UV−visible, fluorescence, and femto/nanosecond transient absorption spectroscopy. Our studies...