Premium
The Redox Potential of the O 2 –O − 2 System in Aqueous Media
Author(s) -
Ilan Yael A.,
Meisel Dan,
Czapski Gidon
Publication year - 1974
Publication title -
israel journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.908
H-Index - 54
eISSN - 1869-5868
pISSN - 0021-2148
DOI - 10.1002/ijch.197400079
Subject(s) - chemistry , redox , aqueous solution , electron transfer , radical , inorganic chemistry , photochemistry , biochemistry
O − 2 radicals were formed in the presence of 2,5‐ dimethyl benzoquinone (DMBQ). The equilibrium constant of the electron transfer reaction DMBQ + O − 2 ⇌ DMBQ − + O 2 was determined. From this value and from E 0 (DMBQ/DMBQ − ) we calculated the redox potential of the couple O 2 /O − 2 , as E 0 (O 2 /O − 2 ) = −0.33 V.