Side-to-Face Ruthenium Porphyrin Arrays: Photophysical Behavior of Dimeric and Pentameric Systems

Abstract

Supramolecular arrays in which a free-base (or zinc) porphyrin is connected by axial coordination of its meso-pyridyl groups to one or more ruthenium porphyrin units have been studied by steady-state and time-resolved techniques. Besides their attractive structures—“open-box” or “flying saucer”—these arrays exhibit interesting photophysical behavior.