Syntheses and properties of functionalized oxacalix[4]arene porphyrins

Functionalized oxacalix[4]arene porphyrins have been synthesized via a '3+1' condensation between a porphyrin and readily available fluorodinitrobenzene-containing trimers, and their photophysical properties evaluated. A porphyrin containing two oxacalix[4]arene moieties is also reported. Data suggest that these porphyrins adopt 1,3-alternating conformations.