Novel fluorescent liquid crystal containing azobenzene and stilbene moieties-synthesis, mesogenic and spectroscopic studies. (May 2017)

• Record Type: Journal Article
• Authors: Korbecka, Izabela; Jaworska, Joanna; Galewski, Zbigniew
• Is Part Of: Dyes and pigments. Volume 140(2017)
• Page Start: 166
• Page End: 168
• Publication Date: 2017-05
• Subjects: Liquid crystals -- Azobenzene -- Stilbene -- Fluorescence -- Smectic -- Dye; Dyes and dyeing -- Periodicals; Pigments -- Periodicals; 667.2
• DOI: 10.1016/j.dyepig.2016.11.059
• Languages: English
• ISSNs: 0143-7208

Abstract

Abstract: This paper presents synthesis and characterization of new rigid core dye composed of two chromophore moieties such as azobenzene and stilbene parts. During this study liquid-crystalline properties was investigated and found as expected. An additional and unforeseen phenomenon of solid state polymorphism was also noticed. Furthermore, fluorescent properties were examined and confirmed by the fluorescence spectroscopy. This initial study gave very interesting and promising results which can be basis for further studies of such new type of azo-stilbene based substances. Graphical abstract: Highlights: New dye with two chromophore groups was designed and synthetized. The optimized synthesis root is presented. Novel dye has interesting properties of both intermediates. Short characterization of mesogenic and fluorescent properties is showed.