Date Published: May 01, 2012
Publisher: International Union of Crystallography
Author(s): Lin-Lin Cong, Min-Yan Kang, Yu-Fei Ji, Zhi-Liang Liu.
In the mononuclear title complex, [Cu(C11H7N6)2], the CuII atom lies on a crystallographic inversion centre and is coordinated by four N atoms from two bidentate chelate monoanionic 3-(pyrazin-2-yl)-5-(pyridin-2-yl-1,2,4-triazol-1-ido ligands, two from the triazolide rings [Cu—N = 1.969 (2) Å] and two from the pyridine rings [Cu—N = 2.027 (2) Å], giving a slightly distorted square-planar geometry.
For details of the synthesis and properties of related copper compounds showing a similar coordination environment, see: Meng et al. (2009 ▶); Cheng et al. (2007 ▶); Zhang et al. (2005 ▶). For the structure of an RuII complex with the same ligand, see: Browne et al. (2002 ▶).