New trends in the investigations of macro cyclic magnets

A study of a series of new type of copper(II), nickel(III) and rhenium(IV) macrocyclic complexes, having an important meaning as macrocyclic magnets is reported. Their magnetic measurements have been carried out over the temperature range 1.8 ‐ 300 K using a Quantum Design SQUID magnetometer (MPMSxL - 5 type). The results indicate that all of them behave as weakly interacting magnets.