Structures and magnetic studies of four new Ni(ii) coordination polymers built using symmetrical tetracarboxylate and N-donor linkers

Four new Ni( ii ) coordination polymers (1–4) have been successfully synthesized using 5,5′-(ethene-1,2-diyl)diisophthalic acid (H 4 L) and different N-donor ancillary ligands. Furthermore, the magnetic properties of 1–4 were investigated in detail.