Figure 1.
Protic IL cations considered in this work: (1–3) primary, secondary, tertiary n-alkyl amines, (4) ethanolammonium, (5,6) mono, 1,2-dimethyl imidizolium (MIm, 1,2-DMIm), (7) 1,1,3,3-tetramethylguanidine, and (8) caprolactam.
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