Synthesis and mesomorphic properties of new T-shaped dimesogens

Several new T- shaped liquid crystalline dimesogenic compounds were synthes ized and their LC proper-ties were characterized. These T-shaped dimesogens consist of substituted fluorene and substituted biphenyl units connected b y flexible spacer units of varying lengths. The compounds were characterize d for their liquid crystallinity by differential scanning calorimetry (DSC) and polarizing microscopy. All the compounds were found to exhibit enantio tropic nematic phase.