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Nature Chemistry (30 January 2009) | doi:10.1038/nchem.123

Molecular magnets: A question of direction

Anne Pichon

Supramolecular clusters built by connecting heterometallic complexes of 3d and 4f metals via organic bridges have been studied over the past few years, not only for their structures and formation processes, but also for their unusual magnetic properties. Annie Powell and co-workers at the University of Karlsruhe in Germany, in collaboration with researchers from Moldova, France and Belgium, have now observed a dramatic change in the magnetic behaviour of heterometallic dinuclear units on linking them.