Abstract
The magnetic susceptibility of the dinuclear iron(III) complex [Fe2(bpmar)(H2O)4](NO3)4·3H2O {H2bpmar–4,6-bis[N, N-bis(2′-pyridylmethyl)aminomethyl]-2-methylresorcinol}, in which the bridging ligand was designed by considering the topological relationship of the network of dπ spins to the bridging ligands, has indicated a ferromagnetic interaction [J=+0.62(3) cm–1 and g= 1.956(4)] between the two metal centres.