Model (IMAGE) University of Münster Caption Molecular structure of the photo-responsive molecular switch (center) surrounded by solvent molecules. The scientists revealed a light-induced pedalo-type motion going forwards and backwards. The image is on the cover of the recent print edition of the journal. Credit Reprinted with permission from I. Conti et al. (2020), J. Phys. Chem. Lett., ACS Usage Restrictions Please use this picture only in connection with the press release. 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.