TOPOLOGICAL DEGENERACY OF MAGNETIC ORBITALS IN ORGANIC BIRADICALS MEDIATED BY METAL-IONS - TRIPLET GROUND-STATE IN A TITANIUM(IV) COMPLEX OF SCHIFF-BASE DIQUINONE RADICAL LIGANDS
A large intramolecular ferromagnetic interaction is observed in a titanium(IV) complex formed by two tridentate Schiff base semiquinonato radical ligands; this peculiar magnetic behaviour may be rationalised on the basis of the structural properties of the biradical compound.