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Bent-shaped molecules form a large variety of liquid crystal phases, such as nematic and smectic phases with polar and even chiral order, and also the recently discovered twist-bend nematic phase with a heliconical modulation of the nematic director. A small kink in the molecular shape can lead to new properties and liquid crystal phases. This paper discusses the theory of liquid crystals of banana-shaped molecules and the underlying physics, and it reviews experimental research of both rigid and flexible bent-core molecules.
Jákli et al. (Tue,) studied this question.
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