IUCrData (Apr 2016)

1-Ethyl-5-nitro-1H-indazole

  • Mohammed Boulhaoua,
  • Mohamed El Hafi,
  • Mohammed Benchidmi,
  • El Mokhtar Essassi,
  • Joel T. Mague

DOI
https://doi.org/10.1107/S2414314616005678
Journal volume & issue
Vol. 1, no. 4
p. x160567

Abstract

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In the title molecule, C9H9N3O2, the nitro substituent is twisted by 4.0 (2)° out of the plane of the indazolyl moiety; the ethyl group is perpendicular to the indazolyl plane, with the N—N—C—C torsion angle being 101.4 (2)°. In the molecular packing, C—H...O hydrogen bonds lead to supramolecular chains along [001]. Globally, molecules assemble into layers in the bc plane. π–π interactions between five- and six-membered rings consolidate the three-dimensional packing [inter-centroid distance = 3.591 (1) Å]. The sample was refined as an inversion twin.

Keywords