Cover Picture: Lewis‐Pairing‐Induced Electrochemiluminescence Enhancement from Electron Donor‐Acceptor Diads Decorated with Tris(pentafluorophenyl)borane as an Electrochemical Protector (Angew. Chem. Int. Ed. 21/2023)

Elaborate metal-free electrochemiluminescence (ECL) systems require highly robust organic emitters in the radical form. In their Research Article (e202301109), Keishiro Tahara, Masaaki Abe, and co-workers used the classical Lewis acid B(C6F5)3 as an electrochemical protector of donor–acceptor emitters, leading to the discovery of Lewis-pairing-induced ECL enhancement. The Lewis acid also converted the molecular arrangements of the emitters, playing a unique role in crystalline-film ECL. Elaborate metal-free electrochemiluminescence (ECL) systems require highly robust organic emitters in the radical form. In their Research Article (e202301109), Keishiro Tahara, Masaaki Abe, and co-workers used the classical Lewis acid B(C6F5)3 as an electrochemical protector of donor–acceptor emitters, leading to the discovery of Lewis-pairing-induced ECL enhancement. The Lewis acid also converted the molecular arrangements of the emitters, playing a unique role in crystalline-film ECL. Electrocatalysis Drug Delivery Nanoparticles Metal–Organic Frameworks