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266 nm Photolysis of HOCl and DOCl: laser-excitation fluorescence detection of OH and OD

Hickman, C.G., Shaw, N., Crawford, M.J., Bell, A.J. and Frey, J.G. (1993) 266 nm Photolysis of HOCl and DOCl: laser-excitation fluorescence detection of OH and OD Journal of the Chemical Society - Faraday Transactions, 89, (11), pp. 1623-1630. (doi:10.1039/FT9938901623).

Record type: Article


Fragment rotational population distributions for OH and OD were observed by laser-excitation fluorescence following the 266 nm photolysis in a free jet molecular beam of HOCl and DOCl, respectively. The photodissociation dynamics show a strong preference for the 2PI(A') OH or OD lambda doublet component in both spin-orbit states. The 2PI3/2 state is more populated than the 2PI1/2 State of OH. The distributions are consistent with photolysis via a repulsive excited state and the measured rotational alignment (-0.28) is compatible with an excited- state symmetry of A' for the dominant dissociation pathway. The high-J limiting value for the degree of electron alignment reaches the extreme value of - 1 for the 2PI1/2 state for both OH and OD, but falls short of this for the 2PI3/2 state, reaching only -0.7.

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Published date: 1993


Local EPrints ID: 15929
PURE UUID: c2f95bf4-c258-4204-9cd0-f8de91ebf03c

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Date deposited: 17 Jun 2005
Last modified: 17 Jul 2017 16:44

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Author: C.G. Hickman
Author: N. Shaw
Author: M.J. Crawford
Author: A.J. Bell
Author: J.G. Frey

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