First examples of a new class of discogen

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Abstract
Two examples of a new class of discotic liquid crystals are presented. Their molecular architecture consists of a trisubstituted central core (either a benzene or a cyclohexane ring) and three regional cores, with three decyloxy-chains in the 3,4,5-positions of a particular benzene ring. These regional cores are linked to the central core via ester groups. Polarizing microscopy and calorimetric measurements reveal the existence of monotropic and enantiotropic discotic mesophases respectively. The products exhibit a pronounced hindering of crystallization at room temperature.

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