Nucleophilic substitution in different non-aqueous solvents at square planar complexes of palladium(II) with l-(2-hydroxyphenyl)-3,5-diphenylformazan ( H 2 F 0 ) according to FoPdX + Y -» FoPdY + X , with X = ammonia and pyridine and Y = triphenylphosphine, thiourea and the thiocyanate ion, obeys the rate law: rate = ki[FoPdX] + k2[FoPdX][Y]. Values of ki and k2 were obtained at 25.0 °C. From m...