3 Results and Discussions j-IR-vis was pretrained to detect the presence of 9 functional groups from IR spectra, specifically, alcohols, amines, esters, ketones, aldehydes, carboxylic acids, ethers, amides, and nitro compounds. Notably, alkenes and alkynes were omitted from j-IR-vis's training due to their characteristically low-intensity signals in IR spectra. j-IR-vis was most successful at predicting aldehydes, amides, carboxylic acids, and nitro groups (Fig. )), as these functional groups exhibit more than one high-intensity stretching vibration in the 1500-4000 cm -1 region of IR spectra. Additional results are presented in Table .