Fig. 2. Study of copper complexes formed during CuAAC reaction. (A) Structure of [Cu4I4(pip)4] complex. Structure modified from CCDC 1529204 using Pymol. (B) Comparing cyclic voltammetry of 1.25 mM [Cu4I4(pip)4] to 5 mM CuI with different concentrations of piperidine in DMF under inert atmosphere, with 0.25 mM supporting electrolyte tetrabutylammonium perchlorate (TBAP). Potential measured vs. Ag+/Ag electrode (reference electrode). Scan rate of 50 mV s−1 was used.
