“Open” analogues of azacycloalkane mesogens: Liquid‐crystalline diethylenetriamides

Abstract

Liquid crystals containing “open” analogues of the mesomorphic amide 1,4,7‐triazacyclononane, i.e., 3,4‐bis(alkoxy)‐ benzoyl substituted diethylenetriamine, are reported, showing that the closed‐ring structure of the central core is not essential for mesomorphism in these compounds. The Figure shows the pronounced pseudo‐focalconic texture observed under the polarizing microscope for the decy1 derivative. magnified image