Abstract
A new series of mesogenic unsymmetrical azines, N-(o-hydroxybenzylidene)-N′-(4-n-alkoxybenzoyloxybenzylidene)azines, HOC6H4CH˭N-N˭CHC6H4OCOC6H4O CmH2m + 1 (m = 7, 8, 9, 10, 11, 12, 14, and 16) have been prepared. They have been characterized by elemental analyses, FT-IR, UV-visible, 1H, and 13C NMR (Nuclear Magnetic Resonance) spectra. The mesomorphic properties of these compounds were investigated by differential scanning calorimetry (DSC) and polarized optical microscopy (POM). The azines m = 7, 10, and 14 exhibit features of enantiotropic nematic (N) mesophase whereas azines m = 8, 11 exhibit features of a monotropic nematic phase. The azines m = 9, 12, and 16 do not exhibit mesogenic nature.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
