Ligand exchange reactions second-order rate constants

For the majority of the reactions kf is the second-order rate constant at 25°C. The ligands NTA and PADA are nitrilotriacetate and pyridine-2-azodimethylaniline respectively. The experimental methods used include electrochemical (E), stopped flow (SF), temperature Jump (TJ) and pressure jump (PJ). On the basis of this kinetic treatment initially developed by Eigen and Wilkins [31], kj/k = Kqj. For [Mn(H20)s] the water exchange rate constant k = 2.7 x 10 s l, Table 1.2, and... 

The rate limiting step of the ligand exchange reactions of the Fe complexes with P donors is found to follow a second-order rate constant which depends on both the nature of the arene and of that of the P donor. 

Figure 2 Statistically adjusted rate constant (log A f) for reaction of nickel(u) species with charged and neutral ligands nsa (A), pada (O), NH3 ( ), and H2O ( ). In the case of water exchange the first-order rate constants have been converted into second-order rate constants by treating the solvent as a reagent of concentration 55.5 mol 1 to permit direct comparison with the other rate constants...

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