Research Article: Bis(2-aminomethyl-1H-benzimidazole-κ2N2,N3)bis­(nitrato-κO)copper(II)

Date Published: June 01, 2012

Publisher: International Union of Crystallography

Author(s): Jing Zhao, Heng Zhang, Xueliang Zhai, Guoyi Zhu.


In the title compound, [Cu(NO3)2(C8H9N3)2], the CuII atom, lying on an inversion center, has a distorted octa­hedral coordination environment defined by four N atoms from two chelating 2-amino­methyl-1H-benzimidazole ligands and two O atoms from two monodentate nitrate anions. In the crystal, N—H⋯O hydrogen bonds link the complex mol­ecules into a three-dimensional network. An intra­molecular N—H⋯O hydrogen bond is also observed.

Partial Text

For the synthesis of the 2-(2-amino­meth­yl)benzimidazole ligand, see: Pascaly et al. (2001 ▶). For the structures and properties of transition metal complexes with 2-(2-amino­meth­yl)benzimidazole ligands, see: Gable et al. (1996 ▶); Gómez-Segura et al. (2006 ▶); He et al. (2003 ▶); Jiang et al. (2004 ▶).




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