Abstract
The TCNX ligands, TCNE (tetracyanoethene), TCNQ (7,7,8,8-tetracyano-p-quinodimethane), and TCNB (1,2,4,5-tetracyanobenzene), are capable of bridging up to four metal centers in discrete mol. complexes or coordination polymers. In addn., the highly non-innocent TCNX ligands may exist in neutral p acceptor form, as stable monoanionic radicals, or as dianions, which has generated a unique coordination chem. Several such compds., particular those involving the TCNX bridges, have found interest for mol. magnetism studies, org. conductor research, and in concepts of mol. computing. This contribution focuses on the chem. potential for new materials and on their phys. characterization, esp. with respect to the TCNX/metal electron transfer and to the spin distribution in paramagnetic states. on SciFinder(R)
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