New mesomorphic benzothiazol derivatives: Synthesis and characterization

Teck Ming Koh, Sie Tiong Ha*, Guan Yeow Yeap, Hong-Cheu Lin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

In this paper, the synthesis of new mesomorphic benzothiazolyl derivatives, 6-ethoxy-2-[4-(4-alkyloxybenzoyloxy)benzylidenamino]benzothiazoles, is presented. The structures of the title compounds were elucidated using spectroscopic techniques, such as FT-IR, NMR (1H and 13C), elemental analysis and EI-MS. The mesomorphic behaviours of these compounds were determined by differential scanning calorimetric and polarizing optical microscopic techniques. Compounds exhibited nematic and tilted smectic phases upon heating from crystal phase. An obvious odd-even effect was observed in this homologous series.

Original languageEnglish
Pages (from-to)926-928
Number of pages3
JournalChinese Chemical Letters
Volume24
Issue number10
DOIs
StatePublished - 1 Oct 2013

Keywords

  • Benzothiazole
  • Mesomorphic
  • Nematic
  • Smectic C

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