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Photoinitiation of the O− + H2O→OH−+OH ion—molecule reaction within the O−2·H2O binary complex

✍ Scribed by Mark A. Buntine; David J. Lavrich; Caroline E. Dessent; M.Georgina Scarton; Mark A. Johnson

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
689 KB
Volume
216
Category
Article
ISSN
0009-2614

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✦ Synopsis

We report the observation of the O-+H,O+OH-+OH ion-molecule reaction following photodissociation of 0, within the 0: .H20 ion-dipole complex. Photoexcitation of the 0~ A % ,+X 'lIn dissociative transition in the 200-300 nm region initiates the reaction. The 0-'H20 reaction intermediate is the dominant photoproduct throughout the A-X band, while some geminate recombination ( 2 2%) is observed at 4.66 eV (266 nm), 0.57 eV above the 0, dissociation threshold.

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