Cyclopalladated acac and cp liquid crystals: a comparative study

Abstract

The cyclopalladation of mesogenic Schiff bases yields two series of novel metallomesogens. The flat acetylacetonate derivatives show both nematic and smectic A phases with extended mesogenic ranges. In contrast, the non-planar cyclopentadienyl complexes show nematic phases at much lower temperatures than those of the acetylacetonate complexes.

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