title: Unsymmetrical calix[4]arene bisporphyrin Pacman.
abstract: [structure: see text] The synthesis of a Pacman heterobisporphyrin associating an octaethyl porphyrinatozinc (ZnOEP) energy donor and a triaryl porphyrinatozinc (ZntPP) energy acceptor around a calix[4]arene spacer is described. Contrary to previous symmetrical architectures, correlations between the chromophores in the unsymmetrical calixarene bisporphyrin Pacman scaffold can now be observed in ROESY experiments. Independent of the excitation wavelength, only the luminescence of the ZntPP moiety was observed corresponding to quenching of the OEP moiety's emission.
authors.affiliation: CLAC, Institut de Chimie, UMR 7177 CNRS-ULP, BP 1032, 4 rue Blaise Pascal, 67070 Strasbourg, France.
authors.forename: Grégory
authors.initials: G
authors.lastname: Pognon
authors.forename: Jennifer A
authors.initials: JA
authors.lastname: Wytko
authors.forename: Jean
authors.initials: J
authors.lastname: Weiss