1991
DOI: 10.1016/0165-022x(91)90084-a
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The NoH value in EPR spin trapping: a n ew parameter for the identification of 5,5-dimethyl-1-pyrroline-N-oxide spin adducts

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Cited by 31 publications
(14 citation statements)
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“…There are two classes of EPR peaks in Fig. 6a: one is due to DMPO-• OH, and the other is due to DMPO-• H. This is in agreement with the previous studies [27][28][29]. The systems of three different catalysts produce similar amounts of • OH (Fig.…”
Section: Epr Spectral Assayssupporting
confidence: 90%
“…There are two classes of EPR peaks in Fig. 6a: one is due to DMPO-• OH, and the other is due to DMPO-• H. This is in agreement with the previous studies [27][28][29]. The systems of three different catalysts produce similar amounts of • OH (Fig.…”
Section: Epr Spectral Assayssupporting
confidence: 90%
“…Computer simulation of this EPR spectrum indicates that the spin adduct corresponds to a carbon-centered radical with hyperfine splittings a N = 16.1 G, α H = 23.6 G, NoH = 0.68, where NoH is the ratio of the nitrogen splitting constant to the hydrogen splitting constant (NoH = a N /a H ). 47 The similarity of this adduct and the previously reported 2-chlorophenyl-DMPO adduct (a N = 15.8 G, α H = 23.8 G, NoH = 0.65) 48 suggested that it was formed by reaction of the spin trap with an aryl radical generated during the photochemical reaction of 2,6-DBP. EPR spin trapping experiments with DMPO demonstrated that high levels of keto radical were produced during the irradiation of 2,6-DBP (Figure 5).…”
Section: Resultssupporting
confidence: 74%
“…• (9). It is reasonable to suggest that the keto form of DMPO/CBQϭO nitroxide adduct may be tautomerized to its corresponding more stable enol form DMPO/CBQ-OH (Scheme 3).…”
Section: Formation Of Cbq(oh)-o-t-bu Wasmentioning
confidence: 99%