Research Article: 2-Chloro-5-nitro­pyridin-4-amine

Date Published: May 01, 2012

Publisher: International Union of Crystallography

Author(s): Jian-Ling He.


The title mol­ecule, C5H4ClN3O2, possesses mirror symmetry, with all of the atoms lying in the mirror plane. There is an intra­molecular N—H⋯O hydrogen bond involving the adjacent –NO2 and –NH2 groups. A short C—H⋯O inter­action is also observed. In the crystal, adjacent mol­ecules are linked via N—H⋯Cl and N—H⋯N hydrogen bonds, forming chains propagating along [100].

Partial Text

For details concerning the importance of the title compound as an inter­mediate in organic synthesis, and for the synthetic procedure, see: Hu et al. (2011 ▶). For bond-length data, see: Allen et al. (1987 ▶).