Syntheses and structures of two coordination polymers formed by Ni(cyclam)²⁺ cations and sulfate anions

The coordination polyhedra of the complex cations in the one-dimensional title coordination polymers represent tetra­gonally distorted trans-NiN₄O₂ octa­hedra with the four N atoms of the macrocyclic ligand forming the equatorial plane and two O atoms of the sulfate anions occupying the axial positions.