Date Published: May 01, 2009
Publisher: International Union of Crystallography
Author(s): Lin Yi Dong.
The CoII atom in the title compound, [Co(C12H8N5)2(H2O)4]·2H2O, lies on a center of inversion and is bonded to two N-heterocycles and to four water molecules in a slightly distorted octahedral coordination. The coordinated and lattice water molecules interact with the N-heterocycles through O—H⋯N hydrogen bonds, generating a three-dimensional supramolecular architecture.
For magnetic studies of transition metal complexes with 1,2,4-triazole derivatives, see: Haasnoot (2000 ▶). For the potential applications of complexes containing substituted 1,2,4-triazole ligands with spin-crossover properties in molecular-based memory devices, displays and optical switches, see: Kahn & Martinez (1998 ▶). For 3,5-di(4-pyridine)-1,2,4-triazole, see: Zhang et al. (2006 ▶); Sreenivasulu & Vittal (2004 ▶). For the structure of water, see: Tajkhorshid et al. (2002 ▶). For the synthesis, see: Basu & Dutta (1964 ▶). For a trinuclear water cluster, see: König (1944 ▶).