H. Qian, Zhigang Yin, Zhi-Qiang Yao
Aug 15, 2009
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Journal
Acta Crystallographica Section E: Structure Reports Online
Abstract
Crystals of the title compound, C10H13N3O2, were obtained from a condensation reaction of butan-2-one and 1-(2-nitrophenyl)hydrazine. The molecule exhibits a nearly coplanar structure, except for the methyl and methylene H atoms, the largest deviations from the mean plane defined by all non-H atoms, except for the nitro group, being 0.120 (2) Å for one of the nitro O atoms. Intramolecular N—H⋯O hydrogen bonding helps to establish the molecular configuration.