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Phosphoric Acids as Amplifiers of Molecular Chirality in Liquid Crystalline Media

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journal contribution
posted on 30.03.2006, 00:00 by Rienk Eelkema, Ben L. Feringa
A new system for the double amplification of the molecular chirality of simple chiral amines in achiral liquid crystalline media is described. It involves a conformationally flexible phosphoric acid based receptor that by binding to chiral amines induces chirality in the liquid crystalline matrix. Efficient cholesteric phase formation was shown by several chiral amines that were not able to induce measurable helicity in nematic liquid crystals by themselves.