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Fe(II)-Fe(III) electronic and magnetic interaction through a thiopyridine bridge.

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2000-06
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Díaz, C.
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Fe(II)-Fe(III) electronic and magnetic interaction through a thiopyridine bridge.
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Author
  • Díaz, C.;
  • Spodine Spiridonova, Evgenia;
  • Moreno N., Yanko;
  • Arancibia, Aquiles;
Abstract
Reaction of CpFe(dppe)I with dithiopyridine in methanol and in presence of NH,PF, affords the new mixed valence complex {[CpFe(dppe)](2)-mu-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 10(6) seg(-1). Variable - temperature magnetic susceptibility measurements have been carried out in the range of 5-300 degrees K. Results can be interpreted as principally due to weak intermolecular antiferromagnetic interactions between Fe (II) - Fe (III) dimers in the solid state.
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URI: https://repositorio.uchile.cl/handle/2250/120629
ISSN: 0366-1644
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BOLETIN DE LA SOCIEDAD CHILENA DE QUIMICA 45(2):317-322
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