Synthesis and Characterization of Rod-Bent Shape Compounds Containing Bis-Oxadiazole

In this work, two new mesomorphic bent-rod shape compounds containing bis-oxadiazole rings are described. The relationship between the compound structure and the mesomorphic behavior as 3,3'-benzene-1,4-diylbis[5-(4-nitrophenyl)-1,2,4-oxadiazole] and 3,3'-benzene-1,4-diylbis[5-(4-chlorophenyl)-1,2,4-oxadiazole] were established using different terminal groups (i.e.,NO2, Cl). The mesomorphism was categorized using POM and DSC, while the compounds structure were characterized using FT-IR and 1HNMR.