A Scheme of the Synthesis (IMAGE) AKSON Russian Science Communication Association Caption The active center of the catalyst, the rhodium atom, is "wearing" an asymmetric "hat," which was constructed from three acetylene molecules. Credit Dmitry S. Perekalin Usage Restrictions With credit information only 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.