Abstract
In the title compound, C15H15N5O 2, the nitro O atoms are disordered over two sets of sites with an occupancy ratio of 0.75 (4):0.25 (4). Amine-imine tautomerism is observed in the formazan group. This was evident from the similar C - N bond distances in the formazan [1.319 (2) and 1.332 (3) Å], as well as the distribution of the imine proton in the Fourier difference map which refined to a 0.53 (3):0.47 (3) ratio. C - H⋯O and π-π interactions [centroid-centroid distances = 3.4813 (1) and 3.3976 (1) Å] are observed in the crystal packing.
Original language | English |
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Pages (from-to) | o425 |
Journal | Acta Crystallographica Section E: Structure Reports Online |
Volume | 68 |
Issue number | 2 |
DOIs | |
Publication status | Published - Feb 2012 |
Keywords
- R factor = 0.060
- T = 200 K
- data-to-parameter ratio = 16.4
- disorder in main residue
- mean σ(C-C) = 0.003 Å
- single-crystal X-ray study
- wR factor = 0.180
ASJC Scopus subject areas
- General Chemistry
- General Materials Science
- Condensed Matter Physics