Structure–property study of new [1,2,3]-triazole liquid crystalline derivatives

Abstract

The synthesis of a new type of liquid crystalline compound derived from 1,2,3-triazole was achieved using Wittig reaction. Polarised microscopy studies, X-ray scattering and differential scanning calorimetry analysis revealed that the target compounds exhibit enantiotropic liquid crystalline properties. Their mesomorphic behaviour is closely related to the nature of substituents in position N1 of the heterocycle, the length of the mesogenic core as well as the isomerisation nature (E/Z) of the double bond.

Keywords:

• 1,2,3-triazole
• mesogen
• 1,3-dipolar cycloaddition
• Wittig
• smectic mesophases