Fig. 5. (A) Variations in the magnitudes of νsym(CO) band shifts observed upon coating the supported metal complexes with various ILs. The x-axis quantifies the electron-donor character of the supports, and the vertical axis represents the magnitude of the ligand effect of the IL; (B) variation in the change of partial hydrogenation selectivity upon the deposition of various ILs, [BMIM][BF4], [BMIM][Ac], and [CPMIM][DCA] with νsym(CO) band positions on the corresponding uncoated supported iridium complexes, quantifying the electron-donor character of the support.
