Keywords

free radicals, irradiated, potassium hydroxylamine disulfonate

Abstract

Two free radicals formed when single crystals of potassium hydroxylamine disulfonate are irradiated with gamma rays at 77degrees K were studied by ESR. The ESR spectra result from a predominant center (radical A) exhibiting large 14N and 1H hyperfine splittings and from lesser amounts of Fremy's radical [O-dotN(SO3)2-2]. The g and hyperfine tensors of these radicals have been evaluated and are discussed. Radical A, whose identity remains in doubt, may be regarded as the precursor to Fremy's radical; on warming its lines decay and those of Fremy's radical are formed. Lines from radical A decrease in strength and those of the hydroxyl radical (O=dotH) grow in strength when irradiated crystals are photolyzed at 77degrees K. The reverse reaction occurs in the dark; the hydroxyl radical disappears and radical A is reformed.

Original Publication Citation

Holmberg, Robert W. and B. J. Wilson."ESR study of free radicals in irradiated single crystals of potassium hydroxylamine disulfonate." The Journal of Chemical Physics 61 (1974): 921-925.

Document Type

Peer-Reviewed Article

Publication Date

1976-08-01

Permanent URL

http://hdl.lib.byu.edu/1877/1282

Publisher

AIP

Language

English

College

Physical and Mathematical Sciences

Department

Chemistry and Biochemistry

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