Hybrid photoluminescent materials containing a benzobisthiazole core for liquid crystal and gel applications.
作者： E. Díaz , E. Elgueta , S. A. Sanchez , J. Barberá , J. Vergara
DOI: 10.1039/C6SM02650H
关键词: Alkoxy group 、 Organic chemistry 、 Chloroform 、 Fluorescence 、 Photoluminescence 、 Nuclear magnetic resonance spectroscopy 、 Thermal stability 、 Liquid crystal 、 Amide 、 Materials science 、 Crystallography
摘要: Tetra- and hexacatenar amide compounds containing a linear centrosymmetric benzobisthiazole core were synthesized with good yields. These characterized their structures confirmed by elemental analysis, FT-IR, Maldi mass NMR spectroscopy. All exhibited excellent thermal stability up to 330 °C. The tetracatenar series double substitution in the meta positions did not show mesomorphic behaviour, whereas having para showed liquid crystal properties optical textures typical of columnar mesophases corroborated POM analysis. dependent on length, number position alkoxy chains attached at end rigid core. XRD studies hexagonal structure mesophases. Photoluminescence solution observed visible region, quantum In solid state, these behave as blue emitters they are able change colour acid or base addition. compound an chain 14 carbons presented supergelator chloroform, leading formation fluorescent organogel material fluorescence emission region.
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