New room-temperature thermotropic perylene-based bisimides: Synthesis, liquid crystalline, light-emitting and electrochemical properties

作者：Bijak Katarzyna; Janeczek Henryk; Grucela Zajac Marzena; Schab Balcerzak Ewa^*

来源：Optical Materials, 2013, 35(5): 1042-1050.

DOI：10.1016/j.optmat.2012.12.019

• Bisimides
• Photoluminescence
• Thermotropic liquid crystals
• Electrochemistry

Three N-alkoxy-substituted perylene-3,4,9,10-tetracarboxyldiimides (PBIs) were synthesized and characterized through the data from H-1 nuclear magnetic resonance (NMR), infrared spectroscopy (IR), elemental analysis, UV-vis absorption spectroscopy, photoluminescence (PL), cyclic voltammetry (CV) and differential pulse voltammetry (DPV) measurements. The phase behavior of obtained bisimides was examined by differential scanning calorimetry (DSC) and polarized optical microscopy (POM). They possess liquid crystalline properties at room temperature and a single mesophase structure exists in wide range of temperatures. The presented bisimides are well soluble in common solvents. All of them are highly fluorescent in solution and in solid state as blend with PMMA. The electrochemical band gap energy (E-g), LUMO and HOMO energy values were in the range 1.46-2.11 eV, -3.74 to -3.98 V and -5.38 to -5.96 V. respectively.

• 出版日期2013-3