Pyromellitimide-bridged porphyrins as model photosynthetic systems. 1. Synthesis and steady state fluorescence properties

Abstract
A two-step synthesis of pyromellitimide-bridged porphyrins is described. These compounds offer a convenient route to model photosynthetic systems of predetermined geometry. Very strong quenching of the fluorescence emission bands on irradiation at the Soret wavelength is suggestive of electron transfer interactions.