SciELO - Scientific Electronic Library Online

 
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 materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Boletín de la Sociedad Chilena de Química

versión impresa ISSN 0366-1644

Resumen

DIAZ, C.; SPODINE, E.; MORENO, Y.  y  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

Palabras llave : iron complexes; magnetic interaction; electronic interaction; thiopyridine bridge.

        · resumen en Español     · texto en Inglés