Synthesis and characterization of complex eta(2)-C-60[Ru(NO)(PPh3)](2)

The fullerene complex, eta(2)-C-60[Ru (NO) (PPh3)](2), has been prepared by the reaction Of C-60 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 P-31 NMR. The results show that the complex of eta(2) form can be formed by C-60 bonding to Ru(NO)(2) (PPh3)(2) in the sigma-pi 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.