COVER PICTURE

R. Matheu, A. Ghaderian, L. Franc�s,P. Chernev, M. Z. Ertem, J. Benet-Buchholz,V. Batista,* M. Haumann,C. Gimbert-SuriÇach,* X. Sala,* A. Llobet*

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Behavior of Ru–bda Water-OxidationCatalysts in Low Oxidation States

Multiple equilibria are involved in Ru-bda based complexes in aqueous solu-tions at low oxidation states. Theseequilibria are pH-dependent and are thekey for understanding the generation ofRu active species at high oxidationstates, which are responsible for wateroxidation catalysis. More informationcan be found in the Full Paper by A.Llobet, V. Batista, C. Gimbert-SuriÇach,X. Sala, et al. (DOI: 10.1002/chem.201801236).