State-to-state dynamics for O(1D)+D2→OD+D:: Evidence for a collinear abstraction mechanism

被引：44

作者：

Liu, XH ^{[1
]}

Lin, JJ

Harich, SA

Yang, XM

机构：

[1] Acad Sinica, Inst Atom & Mol Sci, Taipei 115, Taiwan

[2] Natl Tsing Hua Univ, Dept Chem, Hsinchu, Taiwan

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.86.408

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The O(D-1) + D-2 --> OD + D reaction at two different collisional energies, 2.0 and 3.2 kcal/mol, is investigated by using the H(D) Rydberg "tagging" time-of-flight technique. Experimental results in this study indicate that the OD product is clearly more backward scattered relative to the O(D-1) beam direction at the collisional energy of 3.2 kcal/mol. The extra backward scattered OD products are mostly in the highly vibrationally excited states (v = 4, 5, 6), which is typical of a collinear abstraction mechanism. The experimental results in this work also provide a good testings bed for quantitative theoretical investigations of this benchmark system.

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页码：408 / 411

页数：4

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