Direct evidence for the tunneling reaction of hydrogen deuteride + atomic deuterium .fwdarw. atomic hydrogen + molecular deuterium in the radiolysis of a molecular deuterium-hydrogen deuteride mixture at 4.2 K
Direct evidence for the tunneling reaction of hydrogen deuteride + atomic deuterium .fwdarw. atomic hydrogen + molecular deuterium in the radiolysis of a molecular deuterium-hydrogen deuteride mixture at 4.2 K
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氘化氢原子氘的隧道反应的直接证据.fwdarw。
DOI：
10.1021/j100275a009
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发表时间：
1986
期刊：
影响因子：
--
通讯作者：
Kwang Pill Lee
中科院分区：
文献类型：
--
作者：
T. Miyazaki;Kwang Pill Lee
当D/sub 2/-HD （15.6 mol %）混合物为…-在4.2 K下辐照产生D和H原子，可以用ESR光谱测量。ESR测量已在非常低的微波功率水平（10/sup -3/…mu）下进行。W不会导致氢原子信号的饱和。辐照样品在4.2 K下贮存后，H原子的数量逐渐增加，而D原子的数量则相应减少。结果清楚地表明HD + D的发生。H + D/sub 2/反应，由量子力学隧穿引起。由于辐照样品储存时D原子产率的下降大于H原子产率的增加，因此一些D原子与其他D或H原子重新结合。参考文献7篇，图2张。
When a D/sub 2/-HD (15.6 mol %) mixture is ..gamma..-irradiated at 4.2 K, D and H atoms are produced and can be measured by ESR spectroscopy. ESR measurement has been performed at the very low microwave power level of 10/sup -3/ ..mu..W which does not result in saturation of the signals from the hydrogen atoms. The amounts of H atoms increase gradually upon storage of the irradiated samples at 4.2 K, while the amounts of D atoms decrease complimentarily. The result indicates clearly the occurrence of the HD + D ..-->.. H + D/sub 2/ reaction, caused by quantum mechanical tunneling. Since the decrease in D-atom yields upon storage of the irradiated sample is larger than the increase in H-atom yields, some of the D atoms recombine with other D or H atoms. 7 references, 2 figures.