| Compound | Potential vs. SCE/V | Charge of the C60 anion | Ref. |
| FeCp(C6Me6) | −1.55 | −1、−2、−3 | [28] |
| CoCp*2 | −1.55 | −1、−2、−3 | [29] |
| Ru(bipy)3 | −1.40 | −1、−2 | [30] |
| CoCp*2 | −1.04 | −1、−2 | [31] |
| CoCp2 | −0.91 | −1、−2 | [31] |
| CrTPP | −0.86 | −1 | [32] |
| TDAE | −0.75 | −1 | [33] |
| Cr(C6H6)2 | −0.72 | −1 | [31] |
| NiCp*2 | −0.65 | −1 | [34] |
| CrCp2 | −0.55 | −1 | [31] |