Summary of rate constants (k and k₂) and equilibrium constants (K) in the air oxidation of TOA⁺[Au₂₅(SR)₁₈]⁻ in THF in the presence of TFA^a.

SR	k, M−1 s−1	k 2, s−1	K, mM−1
SC2Ph	5.65 ± 0.06	9.9 ± 0.3	0.20 ± 0.01
SC1Ph	2.93 ± 0.08	4.2 ± 0.1	0.26 ± 0.03
SPhOMe	3.19 ± 0.01	3.67 ± 0.03	0.34 ± 0.01
SPh	1.51 ± 0.02	1.35 ± 0.01	0.55 ± 0.01

^aAt 298 K. [Au₂₅(SR)₁₈]⁻ = 0.010 mM.