Rotational-state dependent selectivity in the bond fission of C2HD (5 nu(1))

被引：44

作者：

ArusiParpar, T

Schmid, RP

Li, RJ

Bar, I

Rosenwaks, S

机构：

[1] Department of Physics, Ben-Gurion University of the Negev

来源：

CHEMICAL PHYSICS LETTERS | 1997年 / 268卷 / 1-2期

关键词：

D O I：

10.1016/S0009-2614(97)00163-2

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report the first demonstration of rotational-state selectivity in bond fission. C2HD is prepared in the 5 nu(1) vibrational-state and photodissociated by similar to 243.1 nm photons that also probe the H/D fragments. The production of both H and D is greatly enhanced upon rovibrational excitation and is rotational-state dependent. The H/D branching ratio for the photodissociation of C2HD (5 nu(1)) is 1.5 +/- 0.2 for J' = 2 and 4.9 +/- 0.5 for J' = 4. Possible mechanisms for the rotational dependence are discussed.

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页码：163 / 168

页数：6

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