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Achiral banana-shaped mesogenic bidentate ligands and their Cu(II) and Pd(II) complexes
Authors:C V Yelamaggad  S Anitha Nagamani  Geetha G Nair  D S Shankar Rao  S Krishna Prasad  A Jakli
Abstract:The first achiral bent-core banana-shaped bidentate ligands and their Cu(II) and Pd(II) metal complexes have been synthesized and investigated for mesomorphic behaviour. The bidentate ligands exhibit only one enantiotropic mesophase. The ligand having C 6 -alkoxy chains shows a mesophase that has been assigned as a two-dimensional B 1 phase while the C 8 and C 10 homologues stabilize the fluid B 2 mesophase showing antiferroelectric switching characteristics. In constrast, their corresponding Cu(II) and Pd(II) metal complexes are non-mesomorphic.
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