Experimental setup (IMAGE) University of Münster Caption Using light energy and a light-sensitive catalyst, the team produced a new type of stable three-dimensional ring from bicyclobutane. (symbolic photo) Credit Glorius Group/Dr. Chetan Chintawar Usage Restrictions The photo may only be used if the source is cited and in connection with this press release. License Original 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.