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), 1623-1630. (doi: 10.1039/FT9938901623).
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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.
|Subjects:||Q Science > QD Chemistry|
|Divisions:||University Structure - Pre August 2011 > School of Chemistry
|Date Deposited:||17 Jun 2005|
|Last Modified:||01 Jun 2011 10:56|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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