"Open" analogues of azacycloalkane mesogens: Liquid-crystalline diethylenetriamides

"Open" analogues of azacycloalkane mesogens: Liquid-crystalline diethylenetriamides

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...

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Veröffentlicht in:Advanced materials (Weinheim) 1994-07, Vol.6 (7-8), p.572-574
Hauptverfasser: Stebani, Uwe, Lattermann, Günter, Wittenberg, Michael, Festag, Reinhard, Wendorff, Joachim Heinz
Format: Artikel
Sprache:eng
Schlagworte:
Condensed matter: structure, mechanical and thermal properties
Exact sciences and technology
Liquid crystals
Physics
Structure of solids and liquids
crystallography
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Zusammenfassung: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.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.19940060709