Fullerene complexes electrochemistry

Attaching a Ceo cluster to an [Ru(bpy)3] + core has been achieved by 1,3-dipolar cycloaddition of azomethine ylides to the fullerene. The electrochemistry of the complex is complicated a one-electron reversible oxidation of the Ru center, five one-electron reversible reductions associated with the Ceo cage, and five more reversible reductions centered on the bpy ligands. The photophysical properties of the complex have been discussed. ... 

The synthesis of fullerene complexes of Pd was developed following precedents with Pt. Complexes C6oPd(PR3)2 and C6o (Pd(PR3)2)6 (R=Ph, Et, PMe2Ph, PPh2Me, or P(OMe)3) were soon prepared/ " and studied with a number of techniques such as electrochemistry and Raman spectooscopy. The Raman spectra demonstrated a reduction in symmetry from in the unsubstituted C6o. to C2V in (7/ -C6o)Pd(PR3)2, and to Th in C6Q (Pd(PR3)2)6. As a consequence, some vibrational modes which are silent in Ceo become active upon coordination, and some degenerate vibrational modes are split. 

A review9 with more than 37 references includes an examination of symmetry groups and chirality conditions for C60 and C70 bonded to one or two metals in rf and/or rf fashion. Palladium and platinum rf complexes of C6o and C70 are described (novel synthesis, NMR spectra, electrochemistry) as well as first optically active organometallic fullerene derivatives. 

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