Received 16 October 2012
In the title compound, C14H12ClN3O2, the acylhydrazone base [C(=O)-N-N=C] is essentially planar, with an r.m.s. deviation of 0.0095 Å, and makes a dihedral angle of 12.52 (10)°with the pyridine ring. In the crystal, molecules are linked via pairs of N-HO hydrogen bonds, forming inversion dimers with an R22(8) graph-set motif. The dimers are linked via C-H interactions forming chains along .
For chemical properties of hydrazides, see: Narayana et al. (2005); Liu et al. (2006). For the synthesis and structure of ethyl(4-chlorophenoxy)acetate, see: Dutkiewicz et al. (2009). For graph-set motifs, see: Etter et al. (1990) and for classification of hydrogen bonds, see: Gilli & Gilli (2009).
Data collection: SMART (Bruker, 1999); cell refinement: SAINT (Bruker, 1999); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: FB2275 ).
We are grateful for financial support from the National Science Foundation of Fujian Province of China (No. 2010 J01288) and the Fundamental Research Funds for the Central Universities (No. JB-JC1003). We also thank Dr Zhan-bin Wei (Department of Chemistry, Xiamen University) for the data collection.
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