A FTIR study of ion-solvent interactions in N,N-dimethylacetamide

FTIR spectroscopy has been used to study ion solvation in electrolyte solutions in N,N-dimethylacetamide (DMA). Principal component analysis was used to analyze the dependence of absorption on electrolyte concentration. Results are reported for NaI, LiI, and LiBr. By comparing the effects of the electrolytes in a given region of the spectrum, one is able to distinguish sites for cation solvation in DMA from those for anion solvation. The present data are compared with those obtained earlier for N,N-dimethylformamide.