Experiment 2: Deprotonation/protonation rate constants

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where the values of the forward (kd) and reverse (kp) rate constants may be different from those in the ground state because of differences in the properties of the 2-naphthol in these two states (for example, Ka 6= K ∗ a in part I). The objective of this experiment is to determine the deprotonation/protonation rate constants of 2-naphthol in its lowest excited singlet state in aqueous solution. For a general overview of chemical kinetics, see Refs. [1, 2]. In Part I, the ratio of concentrations of the ground state free acid and the conjugate base were expressed as a function of pH as:

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تاریخ انتشار 2010