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本文用停流法和分光光度法研究了［Ｆｅ（ｐｏｒ）Ｃｌ］（ｐｏｒ＝原卟啉（ｐｐ）或对应的二甲酯（ｐｐｄｍｅ））与Ｎ－甲基咪唑（Ｎ—ＭｅＩｍ）的亲核取代反应动力学，讨论了反应机理，求得前置平衡的平衡常数（Ｋ）和基元步骤的速率常数（ｋ１），研究了温度对反应动力学的影响，得到平衡步骤的和基元步骤的活化参数
In this paper, the relationship between [Fe (por) Cl] (por = protoporphyrin (pp) or corresponding ppdme) and N-methylimidazole (N-MeIm) The kinetics of nuclear substitution was discussed. The reaction mechanism was discussed. The equilibrium constant (K) of the pre-equilibrium and the rate constant (k1) of the elementary step were determined. The influence of temperature on the reaction kinetics was studied. Activation parameters for the step