Abstract
Abstract Over the last several years, we have witnessed an upsurge in the quantity of research devoted to mesophase formation and properties.1 Of particular interest to chemists is the investigation of molecular structure requirements for liquid crystalline substances, and the variation of mesophase physical properties with composition.2 It has been well established that a large number of compounds which display nematic and/or smectic mesophases possess rod-like shapes and a relatively high degree of polarizability and of conformational rigidity.3 For example, many liquid crystal materials are based on the general structure I; that is, with appropriate aryl moieties, stilbenes (Ia), anils (Ib), azobenzenes (Ic), and azoxybenzenes (Id)4 show mesomorphic properties.
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