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Journal of the Chilean Chemical Society

versão On-line ISSN 0717-9707

Resumo

KAIM, WOLFGANG. METAL COMPOUNDS OF THE TCNX REDOX SYSTEMS -FROM ELECTRON TRANSFER TO SPIN DISTRIBUTION AND MAGNETISM. J. Chil. Chem. Soc. [online]. 2008, vol.53, n.1, pp.1342-1344. ISSN 0717-9707.  http://dx.doi.org/10.4067/S0717-97072008000100002.

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 molecular complexes or coordination polymers. In addition, the highly non-innocent TCNX ligands may exist in neutral n acceptor form, as stable monoanionic radicals, or as dianions, which has generated a unique coordination chemistry. Several such compounds, particular those involving the TCNX'" bridges, have found interest for molecular magnetism studies, organic conductor research, and in concepts of molecular computing. This contribution focuses on the chemical potential for new materials and on their physical characterization, especially with respect to the TCNX/metal electron transfer and to the spin distribution in paramagnetic states

Palavras-chave : Electron transfer; Non-innocent ligands; Spin distribution; TCNQ; Tetracyanoethene.

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