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Metal ion catalysis in acyl and phosphoryl transfer: Transition states as ligands

机译:酰基和磷酰基转移中的金属离子催化:过渡态作为配体

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Interpretation of the role of metal ions in catalysis in terms of direct binding of the catalyst to the transition state of the uncatalyzed reaction allows one to view transition states as ligands and to apply the concepts elaborated for analysis of stability of coordination compounds to reactivity. This paper reviews recent results on kinetics of metal ion catalyzed hydrolysis of carboxylic acid and phosphate esters providing pseudo-equilibrium transition state complexation constants (K_T~≠) for approximately 130 reactions. General trends in K_T~≠ values, in particular, interrelations between ground state and transition state complexation for different groups of catalysts and reactions are discussed.
机译:解释金属离子在催化剂中的作用,即催化剂与未催化反应的过渡态的直接结合,使人们可以将过渡态视为配体,并将阐述的概念用于分析配位化合物对反应性的稳定性。本文综述了有关金属离子催化的羧酸和磷酸酯水解动力学的最新研究结果,提供了约130个反应的拟平衡过渡态络合常数(K_T〜≠)。讨论了K_T〜≠值的一般趋势,特别是针对不同组的催化剂和反应的基态与过渡态络合之间的相互关系。

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