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- W2007814891 abstract "Core substitution of tetraazaperopyrenes (TAPPs) has been achieved, and with it, considerable variation of their photo- and redox-chemical properties. Through Suzuki cross coupling starting from the fourfold core-brominated tetraazaperopyrene, aryl-substituted TAPPs were synthesized, which displayed very high fluorescence quantum yields (up to 100 %) in solution. Besides the Suzuki reactions, Stille and Sonogashira cross-couplings were also found to be suitable methods for core derivatization, as demonstrated in the syntheses of alkynyl-substituted tetraazaperopyrene congeners. Furthermore, TAPPs incorporating intramolecular donor-acceptor combinations of aromatic units (8, 9) were accessible by coupling the electron-poor peropyrene core with electron-rich aromatic units, which act as strong electron donors. Finally, C-heteroatom coupling (O, S, N) gave rise to novel TAPP derivatives with strongly modified redox-chemical behaviour and photophysics in the solid state as well in solution. In particular, TAPP derivatives displaying red fluorescence were obtained for the first time." @default.
- W2007814891 created "2016-06-24" @default.
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- W2007814891 date "2013-09-11" @default.
- W2007814891 modified "2023-09-26" @default.
- W2007814891 title "Tuning Redox Chemistry and Photophysics in Core-Substituted Tetraazaperopyrenes (TAPPs)" @default.
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- W2007814891 doi "https://doi.org/10.1002/chem.201301903" @default.
- W2007814891 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/24027210" @default.
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