Previous Article in event
Next Article in event
Synthesis and antimicrobial activities of some novel bis-pyrazole derivatives containing a hydrophosphoryl unitNext Article in session
New Heterocyclic Liquid Crystals with Benzothiazole Core
Published: 31 October 2010 by MDPI in The 14th International Electronic Conference on Synthetic Organic Chemistry session General Organic Synthesis
Abstract: The design and synthesis of new calamitic benzothiazole-based liquid crystals, 2-[4-(4-alkyloxybenzoyloxy)phenyl]benzothiazoles, are presented. The target compound was characterized using spectroscopic techniques, such as FT-IR, NMR (1H & 13C), microanalysis and EI-MS. The liquid crystalline behaviours of these compounds were thoroughly examined by differential scanning calorimetry and polarizing optical microscope techniques. These materials exhibited enantiotropic nematic phase with high thermal stability. Smectic A phase starts to emerge as monotropic phase from C10 member and changes into enantiotropic phase from C12 and persists up to C16 members.
Keywords: benzothiazole, liquid crystals, nematic, smectic A