Research Article: (E)-N′-[3-(4-Chloro­benzo­yloxy)benzyl­idene]pyridine-4-carbohydrazide acetic acid monosolvate monohydrate

Date Published: May 01, 2012

Publisher: International Union of Crystallography

Author(s): Chun-Hua Diao, Zhi Fan.


In the Schiff base mol­ecule of the title compound, C20H14ClN3O3·CH3COOH·H2O, the central benzene ring makes dihedral angles of 36.26 (7) and 27.59 (8)°, respectively, with the terminal chloro­phenyl and pyridine rings. In the crystal, the three components are linked by O—H⋯O, N—H⋯O, O—H⋯N and C—H⋯O hydrogen bonds into a double-tape structure along the a axis.

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For general background to the use of Schiff base derivatives in the development of protein and enzyme mimics, see: Santos et al. (2001 ▶). For closely related crystal structures, see: Diao et al. (2007 ▶); Peralta et al. (2007 ▶); de Souza et al. (2007 ▶); Wardell et al. (2005 ▶). For reference bond-length data, see: Allen et al. (1987 ▶).