Received 17 July 2011
The title compound, C16H16N2O4, was obtained from the reaction of hydrazine hydrate and o-vanilin in absolute ethanol. The molecule is almost planar (except for the methyl H atoms), with a mean deviation from the plane of 0.0259 Å. The molecular structure also exhibits an approximate non-crystallographic twofold axis. Intramolecular O-HN hydrogen bonds occur. In the crystal, intermolecular C-HO hydrogen bonds generate molecular zigzag sheets. The sheets stack through C-H interactions, leading to a three-dimensional-network.
Data collection: SMART (Bruker, 2001); cell refinement: SAINT (Bruker, 2001); 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: FL2353 ).
This project was supported by the Natural Science Basic Research Plan in Shaanxi Province of China (program No. 2010JM2006, 2011JQ2011) and the Scientific Research Program funded by Shaanxi Provincial Education Department (Program No. 2008 J K440).
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