. Author manuscript; available in PMC: 2018 May 28.

Published in final edited form as: J Am Chem Soc. 2016 Jul 28;138(31):10032–10040. doi: 10.1021/jacs.6b05942

Table 2.

E values for Ru₂^5/4+ couple for 1-5 vs. Fc/Fc⁺ in CH₂Cl₂ with scan rate = 100 mV/s. Electrolyte is 0.1 M.

Compound	Electrolyte	E_1/2 (V)	E_c (V)	E_a (V)
1		–	−1.1^#	–
2	NBu₄PF₆	−0.687	–	–
3	NBu₄PF₆	−0.525^‡	−0.581	−0.469
4	NBu₄NO₃	−0.401^*	−0.465	−0.338
4	NBu₄PF₆	−0.267^*	−0.388	−0.146
5	NBu₄ClO₄	−0.179^*	−0.230	−0.127
5	NBu₄PF₆	−0.145^*	−0.197	−0.094

Indicates quasi-reversible.

Previously reported against SCE^26b and converted here to be against Fc/Fc⁺.²⁷

^‡

Previously reported against Ag/AgCl²⁸ and re-measured here for direct comparison.