Effect of steric hindrance on kinetic and equilibrium data for substitution reactions of diaqua(N-substituted ethylenediamine)palladium(II) with chloride in aqueous solution
作者:H. Hohmann、B. Hellquist、R. van Eldik
DOI:10.1016/s0020-1693(00)80912-3
日期:1991.10
Abstract Kinetic and thermodynamic data are reported for the complex formation reactions: Pd(R4en)(H2O)22+Cl− Pd(R4en)(H2O)Cl++H2O and Pd(R4en)(H2O)Cl++Cl− Pd(R4en)Cl2+H2O, as a function of steric hindrance for RMe and Et. The reported rate constants for these reactions decrease drastically on increasing the steric hindrance. These findings along with strongly negative △S≠ values support the operation