Figure 2: Comparison between the theoretical infrared spectra of the three stable conformers of 1-(5-(difluoromethyl)-1H-pyrrol-2-yl) ethanone (DFPE) at B3LYP/6-31G* level of theory with the corresponding to 1-(5-(trifluoromethyl)- 1H-pyrrol-2-yl) ethanone (TFPE) at the same level of theory.