The middle plot in Figure shows a very large range in barrier heights for these 750 bidentate ligands. Barriers range from slightly negative barriers due to a stabilized ethylene π complex to barriers >80 kcal/mol. Most bidentate ligands have barriers between 15-55 kcal/mol. The bottom of Figure shows similar barrier height distribution plots broken categorized by the two atoms from the ligand directly coordinated to the Rh metal center. While not elaborated further here, these quantitative barrier heights can either be used to design a catalytic cycle or there can be an in-depth qualitative assessment of barrier heights with the assistance of machine-learning models.