Dartmouth's Chenfeng Ke (IMAGE) Dartmouth College Caption Chenfeng Ke, winner of 2020 Cram Lehn Pedersen Prize in Supramolecular Chemistry. Credit Photo: Eli Burakian/Dartmouth College 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.