Media type: E-Article Title: Cover Feature: Twofold Oxidized and Twofold Protonated Redox‐Active Guanidine: An Ultimate Intermediate in Proton‐Coupled Electron‐Transfer Reactions (Eur. J. Org. Chem. 43/2018) Contributor: Wild, Ute; Hübner, Olaf; Greb, Lutz; Enders, Markus; Kaifer, Elisabeth; Himmel, Hans‐Jörg imprint: Wiley, 2018 Published in: European Journal of Organic Chemistry Language: English DOI: 10.1002/ejoc.201801632 ISSN: 1434-193X; 1099-0690 Keywords: Organic Chemistry ; Physical and Theoretical Chemistry Origination: Footnote: