1:1 Co-crystal of 4,4′-(ethene-1,2-di­yl)dipyridin-1-ium sulfate and hexa­aqua­iron(II) sulfate monohydrate

In the title hydrated double salt, 4,4′-(ethene-1,2-di­yl)dipyridin-1-ium hexa­aqua­iron(II) bis­(sulfate) monohydrate, (C₁₂H₁₂N₂)[Fe(H₂O)₆](SO₄)₂·H₂O, the Fe^II cation is coordin­ated by six water mol­ecules in a slightly distorted octa­hedral geometry; the two pyridine rings of the 4,4′-(ethene-1,2-di­yl)dipyridin-1-ium cation are twisted to each other by a dihedral angle of 11.84 (10)°. In the crystal, the cations, sulfate anions and water mol­ecules of crystallization are linked by O—H...O, N—H...O and weak C—H...O hydrogen bonds, forming a three-dimensional supra­molecular network.

Poly[[tetra-μ-cyanido-κ⁸C:N-dodeca-cyanido-κ¹²C-tris­(N,N-di­methyl­formamide-κO)tris­(methanol-κO)tris­(3,4,7,8-tetra­methyl-1,10-phenanthroline-κ²N,N′)trimanganese(II)ditungstate(V)] dihydrate]

The asymmetric unit of the title compound, {[Mn₃{W(CN)₈}₂(C₁₆H₁₆N₂)₃(C₃H₇NO)₃(CH₃OH)₃]·2H₂O}_n, consists of three [Mn(N,N-di­methyl­formamide)(methanol)(3,4,7,8-tetra­methyl-1,10-phenanthroline)]²⁺ cations, two [W(CN)₈]³⁻ anions and two water mol­ecules. Each water mol­ecule is disordered over three sets of sites, with a refined occupancy ratio of 0.310 (9):0.275 (9):0.415 (9) for one mol­ecule and 0.335 (9):0.288 (9):0.377 (9) for the other mol­ecule. The Mn^II atoms exhibit a distorted octa­hedral geometry, while the W^V atoms adopt a distorted square-anti­prismatic geometry. The Mn^II and W^V atoms are linked alternatively through cyanide groups, forming a tetra­nuclear 12-atom rhombic metallacycle. Adjacent metallacycles are further connected by μ₂-bridging cyanide anions, generating a 3,2-chain structure running parallel to [101]. Inter­chain π–π inter­actions are observed [centroid–centroid distances = 3.763 (3) and 3.620 (2) Å].