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2-Allyl-7-nitro-2H-indazole.

ABSTRACT: The asymmetric unit of the title compound, C10H9N3O2, contains two independent mol-ecules linked by a C-H?N hydrogen bond. Each mol-ecule has a similar conformation, being built up from fused five- and six-membered rings, each linked to an ally and nitro group, respectively. The indazole ring system makes dihedral angles of 2.7?(2) and 2.2?(2)°, respectively, with the plane through the nitro group. The allyl group is nearly perpendicular to the indazole system, as indicated by the N-N-C-C torsion angles of -75.3?(2) and -82.2?(2)°, this being the most important difference between the conformations of the two mol-ecules. In the crystal, mol-ecules are linked by C-H?O and ?-? [inter-centroid distance = 3.6225?(8)?Å] inter-actions to form a three-dimensional network.

SUBMITTER: Kouakou A

PROVIDER: S-EPMC3884280 | biostudies-literature | 2013 Oct

REPOSITORIES: biostudies-literature

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2-Allyl-7-nitro-2H-indazole.

Kouakou Assoman A Rakib El Mostapha el M Spinelli Domenico D Saadi Mohamed M El Ammari Lahcen L

Acta crystallographica. Section E, Structure reports online 20131002 Pt 11

The asymmetric unit of the title compound, C10H9N3O2, contains two independent mol-ecules linked by a C-H⋯N hydrogen bond. Each mol-ecule has a similar conformation, being built up from fused five- and six-membered rings, each linked to an ally and nitro group, respectively. The indazole ring system makes dihedral angles of 2.7 (2) and 2.2 (2)°, respectively, with the plane through the nitro group. The allyl group is nearly perpendicular to the indazole system, as indicated by the N-N-C-C torsio ...[more]

PMID: 24454056

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