Table 12.
Redox potentials measured by cyclic voltammetry in acetonitrile vs. SCE at room temperature, with 0.1M tBu4N+ClO4− as supporting electrolyte and a Pt working electrode. In parenthesis is the number of exchanged electrons.
| Complex | Oxidation, V vs. SCE | Reduction, V vs. SCE |
|---|---|---|
| [Ru(phen)3]2+ [141] | +1.27(1) | −1.35(1) −1.52(1) |
| [Ru(phen)2(TPPHZ)]2+ [137] | +1.34(1) | −1.00(1) −1.38(1) −1.69(1) |
| [Ru(phen)2(PHEHAT)]2+ [145] | +1.35 | −0.84 −1.25 |
| [(phen)2Ru(TPPHZ)Ru(phen)2]4+ [137] | +1.34(2) | −0.78(1) −1.36(2) −1.52 |
| [(phen)2Ru(PHEHAT)Ru(phen)2]4+ [157] | +1.34(1) +1.55(1) | −0.68(1) −1.06(1) |
| [(phen)2Ru(TPPHZ)Ru(bpy)2]4+ [137] | +1.34(1) +1.55(1) | −0.68(1) −1.07(1) |
| {Ru[(TPPHZ)Ru(phen)2]3}8+ [137] | +1.35(3) +1.46(1) | −0.78(3) −1.35 (3) −1.54 |
| {Ru[(PHEHAT)Ru(phen)2]3}8+ [157] | +1.38(1) +1.56(3) | −0.70(3) −1.09(3) |
| {Ru[(PHEHAT)Ru(bpy)2]3}8+ [157] | +1.34(1) +1.54(3) | −0.69(3) −1.07(3) |