Isotope effects in the deactivation of O(¹D) atoms by XCl and XF (X=H,D)

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• 作者：Chichinin ; A.I.
• 刊名：Chemical Physics Letters
• 出版年：2000
• 期刊代码：7_00092614
• 类别：ph
• 出版时间：January 21, 2000
• 卷：316
• 期：5-6
• 页码：425-432
• 文件大小：126 K

摘要

The method of time-resolved laser magnetic resonance (LMR) was used to study the deactivation of O(¹D) by HCl, DCl, HF, and DF at room temperature. For O(¹D)+XF(X=H,D), the effect of deuteration on the rates of physical quenching and chemical reaction was negligible. For O(¹D)+XCl, no essential isotope effect on the deactivation rate, on the Cl+OX reaction channel probability, and on the relative quantum yields of spin–orbit excited Cl(²P_1/2) atoms was found. While the formation of H+ClO is found to account for 0.18±0.04 of the deactivation rate, in the deuterated case this channel was negligible (<0.03).