3,5-Diamino-4H-1,2,4-triazol-1-ium hydroxonium bis(pyridine-2,6-dicarboxylato)cobaltate(II) pyridine-2,6-dicarboxylic acid monohydrate

Abstract

The asymmetric unit of the title complex, (C2H6N5)(H3O)[Co(C7H3NO4)2]·C7H5NO4·H2O, contains a CoII ion coordinated by four O atoms and two N atoms from two dipicolinate ligands in a disorted octahedral environment, a protonated triazole molecule, a neutral pyridine-2,6-dicarboxylic acid molecule, a hydroxonium ion and a solvent water molecule. In the crystal, the components are linked into a three-dimensional framework by intermolecular O—H...O, N—H...O and N—H...N and weak C—H...O hydrogen bonds. In addition, π–π stacking interactions with centroid–centroid distances in the range 3.4809 (7)–3.8145 (6) Å are observed.