Redox Properties
Rubrene, like other polycyclic aromatic molecules, undergoes redox reactions in solution. It reduces and oxidizes and reversibly at 0.95 and -1.37 V, respectively vs SCE. When the cation and anion are co-generated in an electrochemical cell, they can combine with annihilation of their charges, but producing an excited rubrene molecule that emits at 540 nm. This phenomenon is called electrochemiluminescence.
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