(IMAGE) Yokohama National University Caption RhRu bimetallic oxide clusters supported on carbon catalyzed the cross-dehydrogenative coupling of arenes and carboxylic acids with molecular oxygen as the sole oxidant. The reactivity of the Rh active center was synergistically enhanced by Ru. Credit Yokohama National University Usage Restrictions News organizations may use or redistribute this image, with proper attribution, as part of news coverage of this paper only. 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.