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Halogen Bonding:  A New Interaction for Liquid Crystal Formation

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posted on 14.01.2004, 00:00 by H. Loc Nguyen, Peter N. Horton, Michael B. Hursthouse, Anthony C. Legon, Duncan W. Bruce
It is shown for the first time that liquid crystal behavior can be induced through halogen bonding. Thus, mixing the nonmesomorphic components 4-alkoxystilbazole with pentafluoroiodobenzene leads to a 1:1 halogen-bonded complex whose integrity is shown by X-ray single-crystal analysis and which shows thermotropic smectic A and nematic phases.