Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 2 (February 2013)

organic compounds

gg2105 scheme

Acta Cryst. (2013). E69, o187 [ doi:10.1107/S1600536812050854 ]

(E)-3-Amino-4-(2-phenylhydrazinylidene)-1H-pyrazol-5(4H)-one

G. H. Elgemeie, S. H. Sayed and P. G. Jones

Abstract: The molecule of the title compound, C₉H₉N₅O, is essentially planar (r.m.s. deviation of all atoms = 0.02 Å) except for the NH₂ H atoms. An intramolecular hydrazinylidene-carbonyl N-HO=C hydrogen bond is present. In the crystal, molecules are connected via N-HN/O hydrogen bonds, forming thick layers parallel to (100).


	Hyper-Text Markup Language (HTML) file [ doi:10.1107/S1600536812050854/gg2105sup0.html ] Supplementary materials

	Chemical Markup Language (CML) file (4.1 kbytes) [ doi:10.1107/S1600536812050854/gg2105Isup3.cml ] Supplementary material

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