Mesomorphic behavior of new double swallow-tailed compounds

Authors

  • Dr. Wolfgang Weissflog,

    Corresponding author
    1. Max-Plank-Gesellschaft AG Flüssigkristalline Systeme Mühlpforte 1, D-06108 Halle (Germany)
    • Max-Plank-Gesellschaft AG Flüssigkristalline Systeme Mühlpforte 1, D-06108 Halle (Germany)
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  • Dr. Iris Letko,

    1. Martin-Luther-Universität Halle-Wittenberg Institut für Physikalische Chemie Mühlpforte 1, D-06108 Halle (Germany)
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  • Dr. Siegmar Diele,

    1. Martin-Luther-Universität Halle-Wittenberg Institut für Physikalische Chemie Mühlpforte 1, D-06108 Halle (Germany)
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  • Prof. Gerhard Pelzl

    1. Martin-Luther-Universität Halle-Wittenberg Institut für Physikalische Chemie Mühlpforte 1, D-06108 Halle (Germany)
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Abstract

Double swallow-tailed compounds are special cases of tetracatenar mesogens (mesogens consisting of a rod-like core and two half-disc shaped moieties), where the branches are not attached directly to the terminal rings. Experiments are reported in which the middle part of the core and the length of the terminal chains were varied. The resulting effects on the transition temperatures and phase behavior are described and trends pointed out.

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