Catalytic Alkene Carboamination (IMAGE) Princeton University Caption Researchers at Princeton have developed a two-component catalyst system that works in tandem to selectively activate the strongest bond in the molecule, a nitrogen-hydrogen (N-H) bond, through a process known as proton-coupled electron transfer (PCET). Credit Knowles lab 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.