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Functionalization of N,N,N’,N’-tetraphenyl-p-phenylenediamine (TPPDA) with (Vinyl)pyridine Moieties: Synthetic Approaches and Structural Characterization
Year: 2025
Type of publication: ostatní - přednáška nebo poster
Page from-to: nestránkováno
Titles:
Language Name Abstract Keywords
eng Functionalization of N,N,N’,N’-tetraphenyl-p-phenylenediamine (TPPDA) with (Vinyl)pyridine Moieties: Synthetic Approaches and Structural Characterization N,N,N’,N’-tetraphenyl-p-phenylenediamine (TPPDA) is a triphenylamine (TPA) based derivative. TPA, a propeller-shaped molecule, demonstrates excellent thermal and morphological stability, which contributes to its promising optoelectronic behavior and broad application potential. Notably, its high oxidizability, along with distinctive electroactive and photoactive characteristics, and the exceptional stability of its corresponding radical cation, make TPA a highly effective hole-transporting material. Following our previous research, series of novel chromophores based on TPA were synthetized using Suzuki-Miyaura cross-coupling or Heck reaction. These chromophores consists of the central TPPDA (electron donor) and peripheral pyridine or vinylpyridine units (electron acceptors). By systematically designing the compound series, we examined how variations in individual substituents (i.e., the number of pyridine units) and substituents with π-linkers (i.e., the number of vinylpyridine units) influence the thermal properties (melting point and decomposition) and photophysical behavior (absorption and emission). chromophore; tetraphenylphenylenediamine; thermal properties; photophysical behavior

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