F. Fronczek
Jan 15, 1994
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Journal
Acta Crystallographica Section C-crystal Structure Communications
Abstract
The molecule propanone 2,4-dinitrophenylhydrazone, C 9 H 10 N 4 O 4 , is nearly planar, with the non-H atoms exhibiting a mean deviation of 0.052 A from their best plane. The largest deviation from coplanarity is 0.194 (3) A, for one of the methyl groups. The N-N bond has length 1.380 (2) A and the N=C bond length is 1.289 (4) A. The nitro groups are essentially coplanar with the phenyl group, forming C-C-N-O torsion angles with magnitudes 1.8 (4) and 3.8 (4) o . The N-H group forms an intramolecular hydrogen bond with an O atom of the ortho nitro group, having an N...O distance of 2.601 (3) A and an angle at H of 132 (2) o