Abstract
The main difficulty encountered in the design of purely organic magnetic materials is that of establishing suitable strategies for avoiding the direct overlap of the magnetic orbitals of the individual magnetic centers, which inevitably leads to antiferromagnetic interactions at best, or more often to complete pairing of the spins. Many ingenious strategies have now been developed, leading to bulk ferromagnetism at very low temperatures, or to strong ferromagnetic interactions in discrete molecules [1-7]. However, the dream of a room-temperature organic ferro- or ferrimagnet has not yet been achieved.
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