Date Published: June 01, 2011
Publisher: International Union of Crystallography
Author(s): Yan Liu, Zuoxiang Wang, Hai Zhang.
In the title complex, [Cu(C7H5O3)2(C21H18N4O)2]·2H2O, the CuII atom is located on a centre of inversion and exists in a tetragonally distorted octahedral geometry with a CuN4O2 chromophore. The intramolecular O—H⋯O hydrogen bond is highly strained due to the molecular geometry and, as a result, is much shorter than expected. Intermolecular C—H⋯O and C—H⋯O interactions are also observed.
For general background to the coordination chemistry of 1,2,4-triazole derivatives, see: Koningsbruggen et al. (1997 ▶); Garcia et al. (1999 ▶); Klingele & Brooker (2003 ▶); Matsukizono et al. (2008 ▶); Suksrichavalit et al. (2009 ▶); Rubio et al. (2011 ▶). For their biological activity, see: Tozkoparan et al. (2000 ▶); Grénman et al. (2003) ▶; Alagarsamy et al. (2008 ▶); Isloor et al. (2009 ▶).