rate constants for the displacement of the first chloride by the nucleophiles Br–, I–, SCN–, and SC(NH2)2 in the complexes [Pd(L–L)Cl2](L–L = 1,10-phenanthroline, 5-chloro-1,10-phenanthroline, 5-nitro-1,10-phenanthroline, or 5-methyl-1,10-phenanthroline) have been determined in dimethylformamide at 25 °C. The rate constants, as well as the discriminating ability of the complexes, increase on decreasing