Research Article: catena-Poly[[bis­(1-methyl-1H-imidazole-κN3)zinc]-μ-3-nitro­phthalato-κ2O1:O2]

Date Published: March 01, 2012

Publisher: International Union of Crystallography

Author(s): Xi-Juan Zhang, Ming-Lin Guo.


In the title complex, [Zn(C8H3NO6)(C4H6N2)2]n, the carboxyl­ate groups of the 3-nitro­phthalate dianion ligand coordinate the ZnII ion in a bis-monodentate mode. The ZnII ion shows distorted tetra­hedral coordination as it is bonded to two O atoms from the carboxyl­ate groups of symmetry-related 3-nitro­phthalate anions and two N atoms of two independent 1-methyl­imidazole mol­ecules. The bridging 3-nitro­phthalate ligand allows the formation of one-dimensional chains in the c direction. The crystal structure is further stabilized by weak inter­molecular C—H⋯O hydrogen bonds.

Partial Text

For related structures with methyl­imidazole, see: Baca et al. (2003 ▶, 2004 ▶); Zhao (2008 ▶). For related coordination modes of phthalate and substituted phthalate with metal, see: Biagini Cingi et al. (1978 ▶); Guo & Guo (2007 ▶); Ma et al. (2004 ▶); Wang et al. (2009 ▶); Yang et al. (2003 ▶).