| Pd(Ⅱ)与α－氨基肟配体PnAO配位反应的动力学研究 |
| KINETIC STUDY OF THE COORDINATION REACTION BETWEEN Pd(Ⅱ) AND α-AMINOXIME LIGAND PnAO |
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| 摘要: 本文用紫外可见分光光度法研究了Pd(Ⅱ)与PnAO生成配合物的反应动力学,测得了几个温度下的反应表观速率常数,提出了一个由螯合作用促进的多步反应机理,计算求得了速率控制步骤的反应速率常数和该步的活化参数,△H≠=57.57kJ·mol-1,△S≠=-34.24J·mol-1·K-1.讨论了介质酸度和离子强度对反应速率的影响。 |
| 关键词: 配位反应 速率常数 动力学 螯合效应 |
| 基金项目: |
| Abstract: The kinetic study of the complex formation between Pd(Ⅱ) and PnAO was studiedspcctrophotometrically.A five-steps mechanism of chelation acceleration was proposed.Thefirst step is r. c. s..The activation parameters of this step were obtained,kJ·mol-1 mol-1·K-1.The influence of PH and ionic strength upon the reactionwas discussed. |
| Keywords: coordination reaction rate constant kinetics chelation effect |
| 投稿时间：1993-08-07 |
| 摘要点击次数: 1032 |
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| 张渊明,林华宽,梁树森,陈荣悌.Pd(Ⅱ)与α－氨基肟配体PnAO配位反应的动力学研究[J].无机化学学报,1994,10(3):294-298. |
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