Cited by 2,121Free Radicals and AntioxidantsNitric Oxide and Endothelin EffectsRedox biology and oxidative stress

The reaction of NO with superoxide

Huie, Robert E., Padmaja, S.·1993·Free Radical Research Communications

Abstract

The rate constant for the reaction of NO with .O2- was determined to be (6.7 +/- 0.9) x 10(9) l mol-1 s-1, considerably higher than previously reported. Rate measurements were made from pH 5.6 to 12.5 both by monitoring the loss of .O2- and the formation of the product -OONO. The decay rate of -OONO, in the presence of 0.1 mol l-1 formate, ranges from 1.2 s-1 at pH 5 to about 0.2 s-1 in strong base, the latter value probably reflecting catalysis by formate.

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Crossref · 10.3109/10715769309145868

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Authors
Huie, R. E., & Padmaja, S.
Affiliations
National Institute of Standards and Technology (US)
Venue
Free Radical Research Communications
Published
1993-01
Volume
18
Issue
4
Pages
195-199
ISSN
8755-0199 (ISSN-L)
OpenAlex
W2109893157
Cited by
2,121
References
18
Citations by year
2026: 10 · 2025: 16 · 2024: 26 · 2023: 29 · 2022: 34 · 2021: 34 · 2020: 27 · 2019: 18 · 2018: 33 · 2017: 39 · 2016: 43 · 2015: 56 · 2014: 64 · 2013: 55 · 2012: 54
FWCI
69.77
Type
journal article
Language
en
Open access
closed
Locations
  • Free Radical Research Communications (publishedVersion)
  • PubMed (publishedVersion)
Funders
U.S. Department of Energy
Topics
  • Physical Sciences › Chemistry › Organic Chemistry › Free Radicals and Antioxidants
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
Keywords
nitric oxide, superoxide, rate constants, nitroxyl, pH dependence, reaction kinetics
MeSH terms
Hydrogen-Ion Concentration, Kinetics, Lasers, Nitrates, Nitric Oxide, Photolysis, Solutions, Spectrophotometry, Superoxides

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