DOI: https://doi.org/10.55373/mjchem.v25i3.517

Keywords: Liquid Crystal; mesogenic; Schiff base; Smectic C; Nematic

Abstract

The liquid crystal phase may be considered a disturbance of the liquid state. Basic mean-field theories can adequately describe some features of liquid crystal behavior by concentrating on liquid crystalline qualities. The modification of the organic chemical structure, such as the linking unit, core system, and terminal alkyl chain, was studied in order to produce new liquid crystalline derivatives. In this study, the preparation and characterization of a new hydrazine-based compound, 4-((E)-(((E)-4-(decyloxy)benzylidene) hydrazineylidene)methyl)phenol were conducted. The structural elucidation of this compound was characterized using Fourier transform infrared (FTIR) spectroscopy, nuclear magnetic resonance (NMR) spectroscopy, and CHN elemental analysis. The texture of liquid crystal properties was determined using polarized optical microscopy (POM), and their transition was further confirmed using differential scanning calorimetry (DSC). The compound was found to be mesogenic with smectic C and nematic phases. The mesogenicity of this compound was affected by the polarizability and molecular interaction stability between the Schiff base linkage and decyl terminal chain.