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APS » Journals » Phys. Rev. Lett. » Volume 87 » Issue 26
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Phys. Rev. Lett. 87, 263001 (2001) [4 pages]

Single Rotational Product Propensity in the Photodissociation of HOD

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S. A. Harich, X. F. Yang, and X. Yang*
Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei, Taiwan, Republic of China

R. van Harrevelt and M. C. van Hemert
Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands

Received 21 February 2001; published 4 December 2001

Photodissociation of HOD from the B̃ state has been studied using the high resolution rydberg “tagging” time-of-flight (TOF) technique. The TOF spectra show an unusually strong population (≈ 50%) for a single rotational state for the OD (A2Σ,v = 0) fragments. Through theoretical studies, this phenomenon, which we have labeled the “single rotational product propensity,” is attributed to a dynamically constrained threshold effect in the photodissociation of the HOD molecule on the B̃ state.

© 2001 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.87.263001
DOI:
10.1103/PhysRevLett.87.263001
PACS:
33.80.Gj

*Also at the Department of Chemistry, National Tsing Hua University, Hsin-Chu, Taiwan, Republic of China.

 
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