Acta Cryst. (2004). B60, 589-597 [ doi:10.1107/S0108768104016623 ]
Abstract: The crystal structures of N-(4-nitrobenzylidene)aniline (1), N-(4-chlorobenzylidene)-4-methylaniline (2) and N-(4-methylbenzylidene)-4-methylaniline (3) were determined by X-ray diffraction analyses at various temperatures. A dynamic disorder was observed in the crystal structures of all compounds. The dynamic disorder is accounted for in terms of a conformational change involving a pedal motion in the crystals.
Keywords: conformational change; dynamic disorder; pedal motion.
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