New 5-alkoxy-2-(4-alkylaminobenzoyloxy)tropones showing a smectic C phase exclusively were prepared. The corresponding benzenoids were non-mesogenic. The variable-temperature FT-IR spectra of 2-(4-dodecylaminobenzoyloxy)-5-tetradecyloxytropone suggested the intermolecular hydrogen bonding between the NH and both the tropone and the ester C=O groups in the mesophase.
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