Research Article: 1-(2-Meth­oxy­phen­yl)-2-{[2-(2-meth­oxy­phen­yl)hydrazinyl­idene](nitro)­meth­yl}diazene

Date Published: March 01, 2012

Publisher: International Union of Crystallography

Author(s): Karel G. von Eschwege, Fabian Muller, Tania N. Hill.


In the title compound, C15H15N5O4, a nitro­formazan derivative, the formazan unit is essentially planar with an r.m.s. deviation of 0.0204 (6) Å and adopts a closed syn,s-cis configuration with an intra­molecular N—H⋯N hydrogen bond. The formazan plane makes dihedral angles of 4.32 (5) and 24.35 (5)° with the benzene rings. The dihedral angle between the formazan plane and the nitro group is 12.58 (8)°. In the crystal, C—H⋯O inter­actions connect the mol­ecules into an inversion dimer.

Partial Text

For synthetic background, see: Pelkis et al. (1957 ▶). For applications of formazans, see: Irving (1977 ▶). For related structures, see: Gilroy et al. (2008 ▶); Laing (1977 ▶); Mito et al. (1997 ▶); von Eschwege et al. (2011 ▶, 2012 ▶); von Eschwege & Swarts (2010 ▶).