Activation Energies of the Addition of O(3P) Atoms to Olefins
Activation Energies of the Addition of O(3P) Atoms to Olefins
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O(3P) 原子与烯烃加成的活化能
DOI：
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发表时间：
1972
期刊：
影响因子：
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通讯作者：
R. Cvetanovic
中科院分区：
文献类型：
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作者：
R. Atkinson;R. Cvetanovic
基电子态氧原子O（3P）的调制生成和相移测量已用于确定O（3P）在25-200°C温度区间内添加到乙烯、丙烯、1 -丁烯和异丁烯的速率。测定了阿伦尼乌斯活化能和指数前因子的绝对值，并与本实验室以前的相关数据和文献中报道的其他绝对测量值进行了比较。现在看来，大多数实验结果是相互一致的。前人对烯烃与O（3P）反应的活化能根据相对速率和绝对速率的测定结果得出的明显不同的结论，可以用一种简单的方法加以调和。测定了O（3P）原子与NO反应的速率常数和Arrhenius参数。
Modulated generation of the ground electronic state oxygen atoms, O(3P), and phase‐shift measurements have been used to determine the rates of O(3P) addition to ethylene, propylene, 1‐butene, and isobutene in the temperature interval 25–200°C. Absolute values of the Arrhenius activation energies and pre‐exponential factors have been determined and compared with the corresponding previous relative data from this laboratory and with other absolute measurements reported in the literature. Most of the experimental results are now seen to be mutually consistent. The apparently different previous conclusions regarding the activation energies of the O(3P) reactions with olefins based, respectively, on the relative and the absolute rate measurements can be reconciled in a simple manner. The rate constants and the Arrhenius parameters for the reaction of O(3P) atoms with NO have also been determined.