Ferrimagnetic-like coupling in ordered one-dimensional systems. Homo- and hetero-metallic chains in EDTA complexes

Abstract

We report on the magnetic behaviour of one-dimensional exchange-coupled systems MM′EDTA·6H₂O, where M and M′ are two host sites for first-row transition metals (Co, Ni, Cu). The isolated complexes are either homometallic chains with one kind of magnetic cation or heterometallic chains with two distinct cations in the regular sequence A—B—A—B.