Novel electroluminescent donor-acceptors based on dibenzo[a,c] phenazine as hole-transporting materials for organic electronics

作者：Shaikh Azam M; Sharma Bharat K; Chacko Sajeev; Kamble Rajesh M^*

来源：New Journal of Chemistry, 2017, 41(2): 628-638.

DOI：10.1039/c6nj03553a

A series of novel donoracceptor type of molecules (26) based on dibenzo[a,c]phenazine were synthesized by employing a palladium = catalyzed CN bond forming amination reaction in a good yield and were then fully characterized, whereby the optical properties of 26 were determined by UV-vis absorption, fluorescence spectroscopy, and the electrochemical properties by cyclic voltammetry. The absorption spectra of 26 showed intramolecular charge transfer (ICT) transitions in the range of 447513 nm in solution. The HOMO and LUMO energy levels of 26 were in the range from -5.03 to -5.29 eV and -2.75 to -2.87 eV, respectively, with an electrochemical band gap within 2.262.45 eV. The HOMO energy levels of 26 are comparable with those of the most commonly used hole-transporting materials, which makes them potential candidates for hole-transporting materials in organic electronics.

• 出版日期2017