Oxidation of spin trap 5,5-dimethyl-1-pyrroline-1-oxide in an electron paramagnetic resonance study of the reaction of methemoglobin with hydrogen peroxide

1994 ◽  
Vol 16 (4) ◽  
pp. 493-500 ◽  
Author(s):  
Guo Dong Mao ◽  
Panakkezhum D. Thomas ◽  
Mark J. Poznansky
Keyword(s):  
Hydrogen Peroxide ◽  
Electron Paramagnetic Resonance ◽  
Spin Trap ◽  
Electron Paramagnetic Resonance Study ◽  
Paramagnetic Resonance ◽  
Electron Paramagnetic

In-situ spin trap electron paramagnetic resonance study of fuel cell processes

2004 ◽  
Vol 6 (11) ◽  
pp. 2891 ◽  
Author(s):  
Alexander Panchenko ◽  
Herbert Dilger ◽  
Jochen Kerres ◽  
Martin Hein ◽  
Andreas Ullrich ◽  
...  
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Fuel Cell ◽  
Spin Trap ◽  
Electron Paramagnetic Resonance Study ◽  
Trap Electron ◽  
Paramagnetic Resonance ◽  
Cell Processes ◽  
Electron Paramagnetic

Electron paramagnetic resonance study of the reactions of the spin trap 2,4,6-tribromonitrosobenzene in benzene solutions

1992 ◽  
Vol 70 (1) ◽  
pp. 116-120 ◽  
Author(s):  
Peter Smith ◽  
Kirk Randall Maples ◽  
Ramona Lillian Lau
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Spin Trap ◽  
Electron Paramagnetic Resonance Spectroscopy ◽  
Electron Paramagnetic Resonance Study ◽  
Azo Compounds ◽  
Resonance Spectroscopy ◽  
Paramagnetic Resonance ◽  
Ene Reaction ◽  
Free Radical Formation ◽  
Electron Paramagnetic

By means of static-sample studies involving the thermal decomposition of symmetric azo compounds and the oxidation of substrates with nickel peroxide, we have characterized by electron paramagnetic resonance 12 spin adducts of 2,4,6-tribromonitrosobenzene, 1, in benzene at 25 °C. In addition, we have used electron paramagnetic resonance spectroscopy to investigate benzene solutions of 1 both by itself and in the presence of olefins, and both in the presence and absence of light. Although 1 by itself did not give evidence for any free radical formation, when 1 was mixed with any one of the 11 olefins tested we could detect nitroxide formation. The presence of light did not affect our results. These observations support the "ene" reaction mechanism of nitroxide formation. Keywords: 2,4,6-tribromonitrosobenzene, spin trapping, nickel peroxide.

Sign in / Sign up

Export Citation Format

Share Document