On the reaction of superoxide with DMPO/.OOH.
A kinetic model has been used to estimate the rate constant for the reaction of superoxide (O2.-/.OOH) with the superoxide spin adduct of 5,5-dimethylpyrroline-N-oxide, DMPO/.OOH. This rate constant is estimated to be 4.9 (+/- 2.2) x 10(6) M-1 s-1, pH 7.4 and 25 degrees C.
Buettner
G R
GR
ESR Center, University of Iowa, Iowa City 52242.
D055598:Chemical Phenomena; D002621:Chemistry; D003497:Cyclic N-Oxides; D004578:Electron Spin Resonance Spectroscopy; D005609:Free Radicals; D007700:Kinetics; D008956:Models, Chemical; D013113:Spin Labels; D013481:Superoxides
D003497:Cyclic N-Oxides; D005609:Free Radicals; D013113:Spin Labels; D013481:Superoxides; C017245:5,5-dimethyl-1-pyrroline-1-oxide