Synthesis and Characterization of Complex η2-C60[Ru(NO) (PPh3)]2

The fullerene complex, η2-C60[Ru(NO) (PPh3)]2, has been prepared by the reaction of C60 with Ru(NO)2 (PPh3)2 under a nitrogen atmosphere and refluxing. The new complex was characterized by means of elemental analysis, IR, XPS, electronic spectra and 31P NMR. The results show that the complex of η2 form can be formed by C60 bonding to Ru(NO)2(PPh3)2 in the σ-π way and there is hyperconjugation effect in the molecule. So electrons will flow easier and photoelectric effect for this new compound is expected. In addition, the structure of the complex has been supposed. The ruthenium is 4-coordinate in the complex, bonding to two carbon atoms, to one PPh3 and to one NO.