“…These derivatives are known to be easily oxidized and have been synthesized by various groups, 27 − 31 leading to their use as emitters, redox-active materials, or organocatalysts. 32 − 37 Interestingly, while the radical cations of such derivatives have been extensively explored, 30 , 34 , 38 , 39 the aromatic dicationic diamagnetic states have been widely neglected and studied almost exclusively in solution, 39 , 40 with some notable exceptions successfully isolating N-alkyl derivatives of the parent phenazinium dication, which, however, were reported as highly reactive ( Figure 1 ). 41 , 42 More recently, an elegant work from the group of Shinokubo reported the synthesis of an anthracene-extended dihydrophenazine ( Figure 1 ), which was oxidized in solution to the radical and dicationic states, resulting in a marked electrochromism.…”