3,5-Lutidine penta­aqua sulfate complexes of first-row transition metals: [M(3,5-lutidine)(H(2)O)(5)]SO(4), with M = Mn, Co, Ni, and Zn

The reactions of MnSO(4)·H(2)O, CoSO(4)·7H(2)O, NiSO(4)·6H(2)O and ZnSO(4)·7H(2)O with 3,5-lutidine (3,5-di­methyl­pyridine) yield crystals of penta­aqua­(3,5-di­methyl­pyridine-κN)manganese(II) sulfate, [Mn(C(7)H(9)N)(H(2)O)(5)]SO(4), (1), penta­aqua­(3,5-di­methyl­pyridine-κN)cobalt(II) sulfate, [Co(C(7)H(9)N)(H(2)O)(5)]SO(4), (2), penta­aqua­(3,5-di­methyl­pyridine-κN)nickel(II) sulfate, [Ni(C(7)H(9)N)(H(2)O)(5)]SO(4), (3), and penta­aqua­(3,5-di­methyl­pyridine-κN)zinc(II) sulfate, [Zn(C(7)H(9)N)(H(2)O)(5)]SO(4), (4), which were characterized by single-crystal X-ray diffraction. The four crystals are isostructural, demonstrating near identical unit-cell parameters and atomic positions. The metal atoms are all octa­hedrally coordinated, with one lutidine ligand and five water ligands. The sulfate dianion hydrogen bonds with the coordinated water mol­ecules of the dicationic metal complex salts, generating infinite three-dimensional networks.