Synthesis and mesogenic property of new hockey-stick-like molecules

In this study, new hockey-stick-like molecules were synthesized and characterized. The desired bent-core molecules consist of two arms with different numbers of aromatic rings, each with its own flexible chain with a different number of carbons: one arm contains four aromatic rings and a terminal propyloxy group, and the other arm contains an aromatic ring with a terminal hexyloxy or dodecyloxy group. To improve the net dipole of the bulk state, fluorine atoms were laterally substituted onto an aromatic ring within each molecule. The structures of the obtained compounds were characterized via FTIR and NMR spectrometry and elemental analysis. Their mesomorphic properties were investigated using DSC and polarizing optical microscopy.