Diaquabis[5-(pyrazin-2-yl-kappa N-1)-3-(pyridin-4-yl)-1H-1,2,4-triazol-1-ido-kappa N-1]cobalt(II) methanol disolvate

The Co-II ion in the title mononuclear compound, [Co(C11H7N6)(2)(H2O)(2)]center dot 2CH(3)OH, is located on an inversion center and is six-coordinated in a distorted octahedral geometry defined by four N atoms from two deprotonated 5-(pyrazin-2-yl-kappa N)-3-(pyridin-4-yl)-1H-1,2,4-triazol-1-ide (ppt) ligands and two water molecules. In the crystal, the complex molecules and lattice methanol molecules are linked via O-H center dot center dot center dot N and O-H center dot center dot center dot O hydrogen bonds, generating a two-dimensional supramolecular network parallel to (001). pi-pi interactions between the triazole and pyrazine rings and between the pyridine rings are present [centroid-centroid distances = 3.686 (3) and 3.929 (4) angstrom, respectively].