Crystal structure of catena-poly[[[tetra­aqua­iron(II)]-trans-μ-1,2-bis­(pyridin-4-yl)ethene-κ(2) N:N′] bis­(p-toluene­sulfonate) methanol disolvate]

In the title polymeric complex, {[Fe(C(12)H(10)N(2))(2)(H(2)O)(4)](CH(3)C(6)H(4)SO(3))(2)·2CH(3)OH}(n), the Fe(II) cation, located on an inversion centre, is coordinated by four water mol­ecules in the equatorial positions and two 1,2-bis­(pyridin-4-yl)ethene mol­ecules in the axial positions. This results in a distorted octa­hedral geometry for the [N(2)O(4)] coordination polyhedron. The 1,2-bis­(pyridin-4-yl)ethene mol­ecules bridge the Fe(II) cations, forming polymeric chains running along the a-axis direction. Stabilization of the crystal structure is provided by O—H⋯O hydrogen bonds; these are formed by coordinated water mol­ecules as donors towards the O atoms of the methanol mol­ecules and tosyl­ate anions as acceptors of protons, leading to the formation of a three-dimensional supra­molecular network. Weak C—H⋯O hydrogen bonds are also observed in the crystal.