Molecular Crystals and Liquid Crystals, Vol.551, 60-68, 2011
Synthesis and Luminescence Properties of a Lollipop-Shaped Molecule Combined with Rod and Disc-Like Mesogens
A novel lollipop-shaped molecule containing 1,3,4-oxadiazole moieties was designed and synthesized. The molecular structure of this 1,3,4-oxadiazole derivative was confirmed by FT-IR, H-1-NMR spectroscopy and elemental analyzer. Its phase behavior and mesomorphic property were investigated by DSC, POM and X-ray diffraction measurements. We found that this compound showed a typical mosaic texture of columnar phase during cooling run. The electron excitation and luminescence properties of this compound were investigated by UV-vis absorption spectroscopy and photo-luminescence spectroscopy both in CHCl3 solution and in solid state.