Synthesis and characterization of novel {N’-(fluoro/chloro/nitro)benzylidene}-3-(decyloxy)benzoylhydrazide nickel(II) complexes and mesogenic property

The synthesis, characterization and mesogenic properties of {N’(fluoro/chloro/nitro)benzylidene}-3-(decyloxy)benzoylhydrazide nickel(II) complexes are described. The molecular structure of the materials comprises two groups of 4-benzoyloxy-benzene and two benzene rings, each of which is connected to the azomethine moiety by two or three alkoxy chains containing a total of 10 carbon atoms. The submitted findings include the synthesis process, which was characterized using Elemental analysis, FT-IR,¹H-NMR,¹³C-NMR, UV–vis spectroscopy and the phase sequence observed by differential scanning calorimetry (DSC) and polarized light microscopy. Two of the compounds (<b>A</b> and <b>B</b>) within the series exhibit mesogenic property within the temperature range of 130–240 °C. A new complexes of {N’-(Fluoro/Chloro/Nitro)benzylidene}-3-(decyloxy)benzoylhydrazide nickel(II) complexes were synthesized. The liquid crystalline properties of <b>A</b> and <b>B</b> complexes were examined by DSC and POM. Synthesis and characterization of {N’-(fluoro/chloro/nitro)benzylidene}-3-(decyloxy)benzoylhydrazide and its Nickel(II) complexes.The nickel (II) complexes (<b>A</b> and <b>B</b>) exhibited mesogenic property.The liquid crystalline properties of <b>A</b> and <b>B</b> complexes were examined by DSC and POM. Synthesis and characterization of {N’-(fluoro/chloro/nitro)benzylidene}-3-(decyloxy)benzoylhydrazide and its Nickel(II) complexes. The nickel (II) complexes (<b>A</b> and <b>B</b>) exhibited mesogenic property. The liquid crystalline properties of <b>A</b> and <b>B</b> complexes were examined by DSC and POM.