Abstract

The series of complexes [N3P3(OC6H 5)5X·MLn]PF6, X=OC 6H4CH2CN, N(CH3)(CH 2)2CN or OC6H4PPh2, and [N3P3(X)6·(MLn) 6](PF6)6, X= OC6H4CH 2CN or N(CH3)(CH2)2CN with ML n=CpFe(dppe) and CpRu(PPh3)2 have been synthesized by reaction of the corresponding cyclophosphazene ligands: N 3P3(OC6H5)5OC 6H4CH2CNL1, N3P 3(OC6H5)5N(CH3)(CH 2)2CNL2, N3P3(OC 6H5)5OC6H4PPh 2L3, N3P3(OC6H 4 CH2CN)6L4 and N3P 3(N(CH3)(CH2)2CN)6L 5 with the respective organometallic CpFe(dppe)I and CpRu(PPh 3)2Cl in CH3OH as solvent and in presence or of NH4PF6. The new compounds were characterized by elemental analysis and IR, UV-Visible and multinuclear NMR spectroscopy. Cyclic voltammetry studies indicate that the cyclophosphazene dendrimers act as insulators between the organometallic centers. © 2004 Elsevier Ltd. All rights reserved.