Nitroxide radicals, aggregation

As mentioned above, intermolecular interactions are the interactions that a stable molecule experiences in the presence of other molecules (not necessarily of the same type) [1], We consider as stable molecules any aggregate of atoms having a long enough stability and lifetime, on a chemical scale. This definition also considers as stable molecules, open-shell radicals whose chemical structure makes them long-living, like those found in molecular magnets (for instance the family of the nitronyl nitroxide radicals). 

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