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The synthesis and characterization of several new banana-shaped mesogens derived from 2,7-dihydroxynaphthalene are described. Some new phase sequences such as N → B6 → B1, N → X1 → X2 → B6, N → X1 → X2 → B1 → Col? have been observed in these bent-core compounds. The influence of a lateral fluorine substituent on the occurrence as well as mesophase type have been investigated. The mesophases have been characterized using polarized light optical microscopy, differential scanning calorimetry, X-ray diffraction studies and electro-optical switching studies.
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Reddy et al. (2004) studied this question.
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