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. 2014 May 22;136(22):8063–8071. doi: 10.1021/ja502974c

Figure 6.

Figure 6

Equilibrium between (a) a μ-1,2-trans-peroxodicopper(II) and bis-μ-oxodicopper(III) species; with 1 equiv CH3SO3, the mixture converts to a pure bis-μ-oxodicopper(III) complex, and (b) Stack and co-workers’ mixture of side-on μ-η22-peroxodicopper(II) and bis-μ-oxodicopper(III) species reacts with chelating anions to give a clean side-on μ-η22-peroxodicopper(II) complex.