Research Article: 2,3-Dimethyl-6-nitro-2H-indazole

Date Published: August 01, 2009

Publisher: International Union of Crystallography

Author(s): Yan Chen, Zheng Fang, Ping Wei.

http://doi.org/10.1107/S1600536809025410

Abstract

In the mol­ecule of the title compound, C9H9N3O2, the indazole ring system is almost planar [maximum deviation = 0.019 (3) Å for the C atom bearing the nitro group]. In the crystal structure, inter­molecular C—H⋯O inter­actions link the mol­ecules into centrosymmetric dimers, forming R22(18) ring motifs. Aromatic π–π contacts between indazole rings [centroid–centroid distances = 3.632 (1) and 3.705 (1) Å] may further stabilize the structure.

Partial Text

For a related structure, see: Xu et al. (1999 ▶). For bond-length data, see: Allen et al. (1987 ▶). For ring-motifs, see: Bernstein et al. (1995 ▶).

 

Source:

http://doi.org/10.1107/S1600536809025410

 

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