@article{oai:gifu-pu.repo.nii.ac.jp:00014850,
 author = {nakayama, tatsushi},
 issue = {1},
 journal = {International Journal of Innovative Science, Engineering & Technology, International Journal of Innovative Science, Engineering & Technology},
 month = {Jan},
 note = {Spin trap of electrogenerated superoxide radical anion (O2•−) and hydroperoxyl radical (HO2•)
using 5,5-dimethyl-1-pyrroline N-oxide (DMPO) was investigated via cyclicvoltammetry and in
situ electrolytic electron spin resonance (ESR) measurements in dehydrated N,Ndimethylformamide (DMF) aided by density functional theory calculations. In aprotic environments, DMPO gradually traps the electrogenerated O2•, however, its trap rate is considerably slow. Conversely, adding a small amount of proton source to O2•− to form HO2• changes the voltammetric behavior, rendering the detection of the spin adduct easy with ESR.
These electrochemical and ESR results obtained in aprotic DMF well demonstrate the differences between O2•− trap and HO2• trap, since the effects of a proton derived from aqueous
solvent on O2•−/HO2• traps, such as superoxide spontaneous dismutation and pH of solution, are not involved. Accordingly, the obtained kinetic and thermodynamic results show the exact
chemical reaction parameters for each of the O2•−/HO2• trap. Therefore, these results will be
useful for estimating an apparent O2•−/HO2• adduct-formation in aqueous ESR measurements.},
 title = {Electrochemical and Computational Analysis of Superoxide/Hydroperoxyl Radical Trap by 5,5-Dimethyl-1-pyrroline N-oxide in N,N-dimethylformamide},
 volume = {9},
 year = {2022}
}