期刊
CHEMICAL PHYSICS LETTERS
卷 386, 期 4-6, 页码 225-232出版社
ELSEVIER
DOI: 10.1016/j.cplett.2004.01.062
关键词
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Direct MP2/6-31G(d,p) classical trajectories were performed to further explore the photodissociation of vinyl chloride at 193 run. In general, the results are in good agreement with those obtained previously using a semiempirical AM1 Hamiltonian supplemented with specific reaction parameters (SRPs). The calculations support the earlier proposal that the three-center elimination of HCl and the isomerization of vinylidene to acetylene take place in a concerted, nonsynchronous fashion. On the other hand, the results indicate that the four-center channel produces rotationally hot HCl molecules while low rotational states of HCl are essentially populated when vinyl chloride dissociates through the three-center channel. This result is at odds with a previous conclusion inferred from fully resolved vibration-rotation emission spectra of HCl and simple theoretical models. (C) 2004 Elsevier B.V. All rights reserved.
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