Fig. 2. (a) IR spectra of fac-[Mn(bpy)(CO)3(MeCN)]+ in DMF solutions containing different concentrations of TEOA (1.3 M, black line; 2.6 M, red line; 3.9 M, green line; 4.5 M, blue line). (b) Ratios of 1Mn-bpy (blue), 2Mn-bpy (red) and 3Mn-bpy (green) obtained by curve-fitting of the IR spectra between 2000 and 2060 cm–1 (Fig. S1†).
