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. Author manuscript; available in PMC: 2018 Sep 11.
Published in final edited form as: J Am Chem Soc. 2017 Jul 19;139(30):10220–10223. doi: 10.1021/jacs.7b05754

Figure 4.

Figure 4.

(top) Overlay of UV−vis spectra (THF, −80 °C) of 3a (red), the product of the reaction of 3a with NMe2PhOH (blue), and the product of the reaction of [NBu4][5] with [Fc][B(ArF)4] (black, dashed). (bottom) Reactions yielding 4, with formal copper oxidation states noted.