Predicting Efficiency (IMAGE) University of Utah Caption University of Utah chemists captured enough data on the crucial steps in a reaction to accurately predict the structures of the most efficient catalysts, those that would speed the process with the least amount of unwanted byproducts. The plot shows the predicted versus measured efficiency of catalyst-substrate pairs (represented as the energy difference between transition states leading to either enantiomer). Credit Anat Milo and Matthew Sigman / University of Utah Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.