Figure S6.4. (a) 1 H NMR and (b) 13C NMR, and (c) two-dimensional NMR spectra of synthesized imidazolium compounds dissolved in DMSO. The black spectra were recorded before electrolysis, while the gray spectra correspond to the solid products dissolved in deuterated DMSO. 1.5 mol% of dimethyl sulfone was used as an internal standard. a b c
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