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. Author manuscript; available in PMC: 2016 Mar 11.
Published in final edited form as: J Am Chem Soc. 2015 Feb 26;137(9):3330–3337. doi: 10.1021/ja512584r

Figure 6.

Figure 6

(a,c) UV-vis absorption spectral change in the reaction of [(tmpa)CuI]+ (2.0 mM) with O2 in O2-saturated acetone (black), followed by addition of Sc(OTf)3 (2.0 mM) to the resulting solution at 213 K (red) at (a) 0–4 s and (c) 4–10 s time delays. (b) Absorption time profiles at 394 nm due to the Sc3+-bound peroxo complex, [(tmpa)CuII(O2)Sc(OTf)3]2+ and 520 nm due to [(tmpa)CuII(O2)CuII(tmpa)]2+. Sc(OTf)3 was added at 2 s time delay.