Abstract
Our previous assignment that the long-lived phosphorescence in the mixed solvent of 2,2,2-trifluoroethanol (TFE) and water is due to a complex of triplet BP( 3BP)/TFE/H 2O or 3BP/H 2O has already been changed to the proposal that the complex is 3BP/ H 2O (1: n) with a fixed number of n, based on the observation of a similar phosphorescence in ethanol and 2-propanol. Although TFE is not a special solvent, at least for the complex formation of BP/H 2O, we still propose that TFE is sometimes a special solvent for some of the other aromatic ketones.
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