Room-Temperature Phosphorescence From A Purely Organic Tetraphenylmethane Derivative With Formyl Groups In Both Solution And Crystalline States

Room-temperature phosphorescence of most purely organic compounds can hardly be observed in their solutions. Here, we report a tetraphenylmethane derivative with four aldehyde groups, which exhibits clear blue phosphorescence in its solution at room temperature. Furthermore, its crystal displays a nearly 7-fold higher phosphorescence quantum yield as compared to the solution.