In the title compound, C(15)H(15)N(5)O(4), a nitro-formazan derivative, the formazan unit is essentially planar with an r.m.s. deviation of 0.0204 (6) Å and adopts a closed syn,s-cis configuration with an intra-molecular N-H⋯N hydrogen bond. The formazan plane makes dihedral angles of 4.32 (5) and 24.35 (5)° with the benzene rings. The dihedral angle between the formazan plane and the nitro group is 12.58 (8)°. In the crystal, C-H⋯O inter-actions connect the mol-ecules into an inversion dimer.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3295411 | PMC |
| http://dx.doi.org/10.1107/S1600536812004175 | DOI Listing |
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