Table 3.

Half-wave potentials E[V] vs. Fc/Fc⁺ in acetonitrile with 0.1M tetrabutylammonium tetrafluoroborate as supporting electrolyte [143].

Complex	λem/nm (CH2Cl2)	λem/nm (CH3CN)	(τ/ns) CH2Cl2	(τ/ns) CH3CN	Oxidation	Reduction
[Ru(tbbpy)2(TPPHZ)]2+ R1 = R2 = H	629	638	404.7	150.3	+0.83	−1.39 −1.88 −2.05 −2.26
[Ru(tbbpy)2(TPPHZ)]2+ R1 = Br, R2 = H	650	661	560.3	218.3	+0.89	−1.18 −1.87 −2.03 −2.18
[Ru(tbbpy)2(TPPHZ)]2+ R1 = H R2 = Br	633	645	390.0	92.1	+0.91	−1.25 −1.89 −2.06 −2.25