Research Article: Dichloridotetra­kis­(1H-1,2,4-triazole-κN4)copper(II)

Date Published: April 01, 2012

Publisher: International Union of Crystallography

Author(s): Maja Vidmar, Tatjana Kobal, Bojan Kozlevčar, Primož Šegedin, Amalija Golobič.


The central CuII atom of the molecular title complex, [CuCl2(C2H3N3)4], is situated on a site with symmetry 2.22. It is six-coordinated in an elongated octa­hedral geometry, with the equatorial plane defined by four N atoms of four 1,2,4-triazole ligands and the axial positions occupied by two Cl atoms situated on a twofold axis. The mol­ecules are connected via N—H⋯Cl hydrogen bonds and the crystal consists of two inter­penetrating three-dimensional hydrogen-bonded frameworks.

Partial Text

For the synthesis and structure of copper(II) coordination compounds with 1,2,4-triazole derivatives, see: Zhang et al. (2003 ▶); Zhang & Wu (2005 ▶); Zhao et al. (2009 ▶); Haasnoot (2000 ▶). For the synthesis and structure of 1,2,4-triazole with other metal ions, see: Arion et al. (2003 ▶), Haasnoot (2000 ▶). For properties of some CuII complexes of pesticides, see: Kamiya & Kameyama (2001 ▶); Morillo et al. (2002 ▶).