Synthesis of Non-Chiral Smectic Liquid Crystals

The synthesis of nonchiral smectic liquid crystals is a broad topic for discussion, however, it can be divided into subsections in two different ways. For example, smectic systems can be split into metallomesogens and nonmetallomesogens, alternatively, they can be divided into materials for (1) meso-phase structure elucidation and classification [ 1 ], (2) property-structure correlations [2] and (3) host systems for ferroelectric and antiferroelectric mixtures. In the following sections template structures used for the synthesis of smectic materials will be described, followed by discussions of the syntheses of materials that have extensive histories in the elucidation of smectic phase structures, and finally of the syntheses of smectogens that are useful in applications. 

Smectic liquid crystal phases can be divided into phases that have structures where the long axes of the molecules are either inclined or orthogonal to the layer planes. In 

Given that there is a very wide variety of template structures that will support smectic phase formation, the object of this review 

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