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Linear free energy relationship between leaving-group pKa values and rate constants for hydrolysis of phosphate monoester dianions at 39°C. ○, benzoyl (9) and aryl (12) phosphates. ●, phenyl phosphate (present work). □, MeP (7). ■, present data. The line shown is corresponds to that in ref. 9 and is described by the equation 0.862 − 1.23 pKa.
