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在低温下利用配合物电子吸收光谱强度与时间的相关性,研究了双核铁（Ⅱ）配合物[Fe2（N-Et-HPTB）{O2P（OPh）2}]（ClO4）2（1）和[Fe2（N-Et-HPTB）{O2P（Ph）2}]（ClO4）2（2）与分子氧反应生成过氧化物桥联的双核三价铁过渡态配合物在不同的温度下分解反应的动力学性质.在实验条件下,分子氧加合物的分解反应为一级反应,并利用 Eyring方程得到了分子氧加合物分解反应相应的活化参数.对于1/O2来说,△H≠=85.62kJ·mol-1,△S≠=19.43 J·mol-1·K-1;对于2/O2来说,△H≠=97.97kJ·mol-1,△S≠=55.68 J·mol-1·K-1.这一结果与其他分子氧加合物以及天然酶（MMOH）中O-O键断裂的活化参数值相当.
The correlation between the intensity of the electron absorption spectrum of the complex and time was studied at low temperature. The effects of the complex of iron (Ⅱ) [Fe2 (N-Et-HPTB) {O2P (OPh) 2}] (ClO4) 2 [Fe2 (N-Et-HPTB) {O2P (Ph) 2}] (ClO4) 2 (2) reacts with molecular oxygen to produce peroxide-bridged binuclear ferric iron transition state complex which decomposes at different temperatures Under the experimental conditions, the decomposition reaction of the molecular oxygen adduct is the first order reaction, and the corresponding activation parameters of the molecular oxygen adduct decomposition reaction are obtained by the Eyring equation.For 1 / O2, ΔH ≠ = 85.62kJ · mol-1, ΔS ≠ = 19.43 J · mol-1 · K-1; ΔH ≠ = 97.97kJ · mol-1 and ΔS ≠ = 55.68 J · mol for 2 / O2 -1 · K-1. This result is comparable to the activation parameter values for OO bond cleavage in other molecular oxygen adducts and in native enzymes (MMOH).