Figure 2. C(1s) XPS spectra for 24 combinations of EMIm+, BMIm+, and BMPyr+ cations with eight anions. The data for continuous lines were calculated in this work. The data for the dotted line is taken from Ref 3, long-dash line – from Ref 5, dashed lines – from Ref 7, dash-dotted lines – from Ref 9, dash-dash-dotted lines – from Ref 59.