metal-organic compounds
In the title complex, [Fe(NCS)2(C4H2N6)2(H2O)2]n, the FeII atom is on an inversion centre and the 4,4′-bi-1,2,4-triazole (btr) group is bisected by a twofold axis through the central N—N bond. The coordination geometry of the FeII atom is elongated distorted FeN4O2 octahedral, where the cation is coordinated by two N atoms from the triazole rings of two btr groups, two N atoms from NCS− ligands and two water molecules. Btr is a bidentate ligand, coordinating one FeII atom through a peripheral N atom of each triazole ring, leading to a one-dimensional polymeric (chain) structure extending along [101]. The chains are further connected through a network of O—HN and C—HS hydrogen bonds.