A novel homologous series of -4-(4-n-alkoxy cinnamoyloxy) phenyl -2-nitro, 3-4 di methoxy benzoyl ethylenes, H(2n+1)CnOC(6)H(4)CHCHCOOC(6)H(4)COCHCHC(6)H(2)(NO2) (OCH3)(2) (n = 1-8, 10, 12, 14, 16, 18) has been synthesized. All these compounds have been characterized by suitable spectroscopic techniques. C-1 homologue is nonmesogenic, while C-2 homologue shows enantiotropic nematogenic property and the rest of the homologous (C3C18) displayed enantiotropically smectogenic plus nematogenic phase. Phase transition temperatures and textures of the LC phase were determined by an optical polarizing microscopy (POM) equipped with a heating stage. The mesomorphic properties of these compounds were confirmed by differential scanning calorimetry (DSC) analysis.