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.  doi: 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 clave : iron complexes; magnetic interaction; electronic interaction; thiopyridine bridge.