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vol.45 número2A STRUCTURAL STUDY ON THE INTERACTION OF MERCURIC CHLORIDE AND METHYLMERCURY WITH PHOSPHOLIPID BILAYERSTHERMAL EFFECT ON THE MICROHARDNESS OF CHITOSAN FILMS índice de autoresíndice de assuntospesquisa de artigos
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Boletín de la Sociedad Chilena de Química

versão impressa ISSN 0366-1644

Resumo

DIAZ, C.; SPODINE, E.; MORENO, Y.  e  ARANCIBIA, A.. FE (II) - FE (III) ELECTRONIC AND MAGNETIC INTERACTION THROUGH A THIOPYRIDINE BRIDGE. Bol. Soc. Chil. Quím. [online]. 2000, vol.45, n.2, pp.317-322. ISSN 0366-1644.  http://dx.doi.org/10.4067/S0366-16442000000200020.

Reaction of CpFe(dppe)I with dithiopyridine in methanol and in presence of NH4PF6 affords the new mixed valence complex {[CpFe(dppe)]2 - m - S - Py}(PF6)2 (1). Observation of an intervalence electron transfer affords the Hush parameters that permit to classify this compound as a type II Robin Day complex. The electron transfer across the pyridinethiolate ligand occurs at a rate estimated to be about 106 seg-1. Variable - temperature magnetic susceptibility measurements have been carried out in the range of 5-300 °K. Results can be interpreted as principally due to weak intermolecular antiferromagnetic interactions between Fe (II) - Fe (III) dimers in the solid state

Palavras-chave : iron complexes; magnetic interaction; electronic interaction; thiopyridine bridge.

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