Crystal structure of the coordination polymer catena-poly[(1,2-di(pyridin-4-yl)ethane-κN)-(μ2-2-nitroisophthalato-κ2O:O′)zinc(II)], C20H17N3O7Zn

C20H17N3O7Zn, monoclinic, P21/n (no. 14), a = 10.4368(3) Å, b = 15.1527(5) Å, c = 12.9007(3) Å, β = 101.900(3)°, V = 1996.36(10) Å3, Z = 4, Rgt(F) = 0.0410, wRref(F2) = 0.0898, T = 293(2) K