Detection of alkyl, alkoxyl, and alkyperoxyl radicals from the thermolysis of azobis (isobutyronitrile) by ESR/spin trapping. Evidence for double spin adducts from liquid- …

EG Janzen, PH Krygsman, DA Lindsay…

Index: Janzen, Edward G.; Krygsman, Peter H.; Lindsay, David A.; Haire, D. Larry Journal of the American Chemical Society, 1990 , vol. 112, # 23 p. 8279 - 8284

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Citation Number: 96

Abstract

Abstract The thermolysis of azobis (isobutyronitri1e)(AIBN) in the presence of oxygen has been investigated by spin trapping by using@-phenyl N-terf-butyl nitrone (PBN) and 5, s- dimethylpyrroline N-oxide (DMPO). The aminoxyl products identified by ESR and mass spectroscopy (MS) are the result of trapping 2-cyano-2-propyl radicals (CP) in the presence of oxygen. By low-temperature ESR the 2-cyano-2-propylperoxyl adduct of PBN-ni~ onyl-l ...