The complexes [N3P3(OC6H5)5OC6H4CH2CN.FeCl2]PF6 (<A HREF="#1">1</A>) and [N3P3(OC6H4CH2CN)6. (FeCl2)6](PF6)6 (<A HREF="#2">2</A>) have been syntethyzed by reaction of the corresponding cyclophosphazene ligands: N3P3(OC6H5)5OC6H4CH2CN (<A HREF="#3">3</A>) and N3P3(OC6H4CH2CN)6 (<A HREF="#4">4</A>) with FeCl3 in CH3OH as solvent and in presence of NH4PF6. The new compounds were characterized by elemental analysis and IR, UV-Visible and EPR spectroscopy as well as electrochemical methods. The hexametalladendrimers exhibits a six-electron reduction while that the monometalladendrimers exhibit a single one-electron reduction. The paramagnetic complexes exhibit strong EPR signals in solid as well as in CH2Cl2 solution.
Sociedad Chilena de Química
Boletín de la Sociedad Chilena de Química v.45 n.4 2000
Dendrimers based on cyclophosphazene unit and containing iron (III)