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Keywords:

  • anthracene;
  • conjugation;
  • hexaphyrin;
  • porphyrinoids;
  • two-photon absorption
Thumbnail image of graphical abstract

Gold standard: A bis(AuIII) complex containing the title compound was prepared and characterized (see scheme; DDQ=2,3-dichloro-5,6-dicyano-1,4-benzoquinone, Tf=trifluoromethanesulfonyl). Owing to the effective conjugative network over the flat and elongated rectangular molecular frame, this complex displays a remarkably red-shifted and sharp Q-band-like band at 1467 nm, multiple reversible redox potentials, and a large TPA cross-section value.