Frontispiece: Electron‐Rich Phenothiazine Congeners and Beyond: Synthesis and Electronic Properties of Isomeric Dithieno[1, 4]thiazines. Issue 53 (21st September 2020) - May, Lars
Abstract : The frontispiece has the following story : Phenothiazine is the prehistoric electron‐rich fossil (to which the authors have devoted so much of their research), a classic in dye chemistry and medicinal chemistry, which has received increasing attention due to its characteristic signature of stable radical cations. syn ‐ syn ‐Dithienothiazine (here: Aquila Sulphuris, the Eagle of Sulfur) is the next step in this "evolution", being easier to oxidize and giving more stable radical cations. Finally, sky‐rocketing anti ‐ anti ‐dithienothiazine is the "Electron Shuttle" and is the next step. All three systems are addressed in the Communication by Lars May and Thomas J. J. Müller on page 12111 ff. (Lars May, designed this comic‐like graphic showing the "Evolution of redox active anellated 1, 4‐thiazines".)