The chelation reaction of the complexes [Fe(CO)4N(C6H4X)CH–CHCHPh}](1) to form [Fe(η-Ph–CHCH–CHN–C6H4X)(CO)3](2)(X = 4-Br, 4-OMe, and H) in the presence of excess Schiff base has been studied. The kinetics are first order in the complex concentration and the inverse of the rate constantvaries linearly with the concentration of the Schiff base. The effect of CO on both the rate constants and the final
络合物[Fe(CO)4 N(C 6 H 4 X)CH–CH CHPh}}(1)的螯合反应形成[Fe(η-Ph–CH CH–CH N–C 6 H 4 X )(CO)3 ](2)(X = 4-Br,4-OMe和H)在过量席夫碱存在下的研究。动力学是复数浓度的一阶,速率常数的倒数随席夫碱的浓度线性变化。已经研究了CO对速率常数和最终反应产物的影响。结果支持了与针对α,β-不饱和醛和酮的相应配合物所提出的反应机理相似的反应机理。(1)与PPh 3的取代反应也已被调查。它通过分离机制进行。观察到的取代基X对速率常数的影响可以得出这样的结论:在具有三角-双锥体结构的四
羰基铁的衍
生物中,顶端位置的键能主要取决于σ键强度。而在赤道位置的反射率取决于存在的π反向键的数量。