Table 6.

Electrochemical data V vs. SCE for selected HAT complexes in acetonitrile with tetrabutylammonium hexafluorophosphate as supporting electrolyte [147,150].

Complex	Oxidation	Reduction
[Ru(bpy)2(HAT)]2+	+1.56	−0.84 −1.43 −1.63
[Ru(phen)2(HAT)]2+	+1.53	−0.86 −1.42 −1.69
{[Ru(bpy)2]2(HAT)}4+	+1.53 +1.78	−0.49 −1.06 a
{[Ru(phen)2]2(HAT)}4+	+1.52 +1.78	−0.49 −1.07 a
{[Ru(bpy)2]3(HAT)}4+	+1.61 +1.87 +2.12	−0.25 −0.58 −1.07
{[Ru(phen)2]3(HAT)}4+	+1.61 +1.88 +2.16	−0.30 −0.64 −1.12

^a Several other reduction waves are observed but are too close to be distinguished unambiguously.