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Singlet molecular oxygen in the Haber-Weiss reaction.
Open accessAbstract
Characteristic chemiluminescence emission of singlet (1 delta g) molecular oxygen at 1268 nm is reported from a Haber-Weiss reaction. The reaction consists of mixing aqueous hydrogen peroxide with a solution of potassium superoxide, solubilized by 18-crown-6 ether in carbon tetrachloride or in dry acetonitrile at room temperature. Since the discovery of the enzyme superoxide dismutase by J.M. McCord and I. Fridovich [(1968) J. Biol. Chem. 243, 5733-5760], the identity of the reactive oxidant in superoxide-generating systems in biology has remained a chemical mystery. The results presented here suggest strongly that the reactive species is singlet oxygen generated via the Haber-Weiss reaction and not, as usually assumed, the hydroxyl radical, .OH, generated by the same reaction.
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Cited by
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Brunet, L., Lyon, D. Y., Hotze, E. M., Alvarez, P. J. J., & Wiesner, M. R. (2009) · Environmental Science & Technology · doi:10.1021/es803093t · Cited by 469
Singlet-Oxygen Chemiluminescence in Peroxide Reactions
Adam, W., Kazakov, D. V., & Kazakov, V. P. (2005) · Chemical Reviews · doi:10.1021/cr0300035 · Cited by 313
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Metadata
- Authors
- Khan, A. U., & Kasha, M.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 1994-12-20
- Volume
- 91
- Issue
- 26
- Pages
- 12365-12367
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2004487155
- Cited by
- 222
- References
- 0
- FWCI
- 2.57
- Type
- journal article
- Language
- en
- Open access
- bronze
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