Toyokichi. Kitagawa, T. Layloff, R. Adams
Jul 1, 1963
Citations
0
Influential Citations
33
Citations
Journal
Analytical Chemistry
Abstract
It was reported by Kitagawa et al that electron paramagnetic resonance spectra (EPR) corresponding to the nitrobenzene anion radical was obtained from the reduction of o-bromonitrobenzene in dimethylformamide (DMF) containing 0.1 M tetraethylammonium perchlorate (TEAP) as a supporting electrolyte and this result was also confirmed by Fujinaga et al.. According to the complete study of the halonitrobenzenes by authors' , three iodonitrobenzenes lose their iodine to give the nitrobenzene anion radical as a stable intermediate in the reduction potential of the second step. For the bromo series only the ortho derivative readily loses bromine. In the chloro series, the chlorine is, retained in all three isomers at an applied potential of -1.1 Volts (vs. S.C.E.). Recently the elimination reaction of chlorine or bromine from the chloroor bromo nitrobenzene has been reported to occur at a more negative potential than the second re duction potential. This paper mainly concerns the voltommetry and the electron paramagnetic resonance