A zigzag tetranuclear iron(iii) complex, [Fe4(bpaeO)2(CH3O)2(N3)8] coexisting both ferromagnetic and antiferromagnetic couplings (bpaeOH = N,N-bis(2-pyridylmethyl)-2-aminoethanol)

A zigzag tetranuclear [Fe4(bpaeO)2(CH3O)2(N3)8] possesses two different high-spin ferric sites and both ferromagnetic and antiferromagnetic interactions exist within the iron(III) ions.