Effects of Electron-Withdrawing Strengths of the Substituents on the Properties of 4-(Carbazolyl-R-benzoyl)-5-CF₃-1H-1,2,3-triazole Derivatives as Blue Emitters for Doping-Free Electroluminescence Devices.

ABSTRACT: The synthesis of four 4-(carbazolyl-R-benzoyl)-5-CF₃-1H-1,2,3-triazoles with extra groups ((3-methyl)-phenyl-, 4-fluorophenyl-, quinolinyl-, or (3-trifluoromethyl)-phenyl-) in the acceptor fragment has been reported. The effects of substituents with different electron-withdrawing strengths on the thermal, electrochemical, photophysical, and electroluminescence properties of the synthesized compounds are discussed. The results of X-ray analyses and density functional theory (DFT) calculations support unusual molecular packing and electronic properties. The compounds are capable of glass formation with glass transition temperatures ranging from 54-84 °C. Ionization potentials of the compounds are in the range of 5.98-6.22 eV and electron affinities range from 3.09 to

SUBMITTER: Stanitska M 

PROVIDER: S-EPMC10976381 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature