Trans effect palladium amine complexes

DNA polymerases, 5, 1007 Trans effect, 1,16, 26, 315 metal complexes, 2, 705, palladium(II) amine complexes, 5, 1115 platinum complexes, 5, 353, 493 six-coordinate compounds. 1, 49 T ransestcrification metal alkoxide synthesis, 2, 340 Transferases zinc, S, 1002... 

The relative kinetic cis effects of halide ligands on substitution at palladium(ii) have been established by monitoring the reactions of trans-[Pd(4-Cl-py)2Xa] and of rra j-[Pd(py)2Xa], where X = Cl, Br, or I, with amines or with thioethers in 1,2-dimethoxyethane solution at 25 °C. The usual two-term rate law [equation (4)] applies to these reactions, but as the ky terms were all small, the c r-effect trends have been reported only for the k, terms. The cis effects on substrate discrimination are in the order I>Br> Cl for reaction with amines, and Cl>Br>I for reaction with thioethers. This pattern is the same as that established for platinum(n) complexes, ... 

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