2,4-Pentanedione Bis(2,4-dinitrophenylhydrazone)

The title molecule, C₁₇H₁₆N₈O₈, has approximate non-crystallographic twofold symmetry. The bond lengths in the chain of atoms connecting the two dinitrophenyl groups are consistent with some delocalization of the double bonds in the chain. The molecule adopts an E,E conformation, which favours intramolecular N—H...O hydrogen bonding. The dihedral angle between the planes of the phenyl rings is 69.6 (1)°.

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