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Mode-Specific Energy Disposal in the Four-Atom Reaction OH + D2 HOD + D
Brian R. Strazisar,Cheng Lin,H. Floyd
Davis*
Experiments, employing crossed molecular beams, with vibrational
state resolution have been performed on the simplest four-atomreaction, OH + D2 HOD + D. In good agreement
with the most recentquantum scattering predictions, mode-specific
reaction dynamicsis observed, with vibration in the newly formed
oxygen-deuteriumbond preferentially excited to v = 2. This demonstrates that quantumtheoretical calculations, which in the
past decade have achievedremarkable accuracy for three-atom reactions
involving three dimensions,have progressed to the point where it is
now possible to accuratelypredict energy disposal in four-atom
reactions involving six dimensions.
Department of Chemistry and Chemical Biology, Cornell University,
Ithaca, NY 14850, USA.
*
To whom correspondence should be addressed. E-mail:
hfd1{at}cornell.edu
The editors suggest the following Related Resources on Science sites:
In Science Magazine
PERSPECTIVES
George C. Schatz (3 November 2000) Science290 (5493), 950.
[DOI: 10.1126/science.290.5493.950] |Summary »|Full Text »
REPORTS
Dong H. Zhang, Michael A. Collins, and Soo-Y. Lee (3 November 2000) Science290 (5493), 961.
[DOI: 10.1126/science.290.5493.961] |Abstract »|Full Text »|PDF »
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State-Specific Correlation of Coincident Product Pairs in the F + CD4 Reaction.
HOD + D
HOD + D. In good agreement
with the most recent quantum scattering predictions, mode-specific
reaction dynamics is observed, with vibration in the newly formed
oxygen-deuterium bond preferentially excited to v = 2. This demonstrates that quantum theoretical calculations, which in the
past decade have achieved remarkable accuracy for three-atom reactions
involving three dimensions, have progressed to the point where it is
now possible to accurately predict energy disposal in four-atom
reactions involving six dimensions.
