化学学报 ›› 1992, Vol. 50 ›› Issue (12): 1163-1168. 上一篇    下一篇

研究论文

化学动力学中隧道效应的研究 Ⅰ.甲醛单分子热反应中隧道效应的研究

陈玉;赵成大   

  1. 东北师范大学化学系
  • 发布日期:1992-12-15

Study on tunneling effect in the chemical kinetics.Ⅰ.study on tunneling in thermal unimolecular reaction of formaldehyde

CHEN YU;ZHAO CHENGDA   

  • Published:1992-12-15

本文用不对称Eckart势垒研究了甲醛单分子热解体系.改进了Forst的工作并计算了不同热效应条件下的一系列反应速率常数及相应的活化能,在考虑隧道效应的条件下详细讨论了势垒不对称性对计算结果的影响.计算结果与实验结果一致.

关键词: 反应动力学, 甲醛, 反应速度常数, 势垒, 隧道效应, 热反应

Using one-dimensional unsym. Eckart potential energy barrier, thermal reaction system of formaldehyde was studied. In addition, a series of rate constants and activation energies have been calculated at different thermal effects and the effect of unsymmetry of potential barrier on the results of calcns. has been discussed in detail. The results of calcns. are in agreement with experimental results.

Key words: REACTION KINETICS, FORMALDEHYDE, REACTION RATE CONSTANT, POTENTIAL BARRIER, TUNNELING EFFECT, HOT REACTION

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