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Unique donor-π-acceptor phthalocyanines have been synthesized through the asym. functionalization of an ABAB phthalocyanine, crosswise functionalized with two iodine atoms through Pd-catalyzed cross-coupling reactions with adequate electron-donor and electron-acceptor moieties. These push-pull mols. have been optically and electrochem. characterized, and their ability to perform as chromophores for dye-sensitized solar cells has been tested.
Nikolaos Vlachopoulos, Ulf Anders Hagfeldt, Kazuteru Nonomura, Gunther Wittstock