Synthesis and Characterization of Unsymmetrical Five-Ring Achrial Banana-Shaped Compounds With a B2 Phase

Abstract

Two series of unsymmetrical banana-shaped materials have been prepared with laterally substituted hydroxy and nitro groups. All the compounds exhibit liquid crystalline properties. The syntheses and liquid crystalline properties of these compounds are discussed.

Keywords:

• B2 phase
• lamellar reflection
• lateral substitution
• unsymmetrical bent shaped

ACKNOWLEDGMENTS

We thank the DST (New Delhi) for financial assistance. Two of us (SC and NP) are thankful to the CSIR (New Delhi) for their fellowships. We also thank the Material Science Department of the IACS, Kolkata for providing us the HRXRD facilities.