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O/sup -/ detected by ESR as a primary electron-excess defect in x-irradiated K/sub 2/SO/sub 4/

Journal Article · · J. Chem. Phys.; (United States)
OSTI ID:5726413
ESR spectra of K/sub 2/SO/sub 4/ crystals irradiated with x rays at 26 K contain signals from a novel type of defect in three inequivalent configurations. The g tensors, linewidths, and hyperfine splittings from one potassium nucleus all indicate that the defects are structurally analogous to the primary electron-excess defects (O/sup -/,ClO/sup -//sub 3/ ) in KClO/sub 4/. Hence the spectra are assigned to the complex (O/sup -/,SO/sup 2 -//sub 3/ ). The directions in the K/sub 2/SO/sub 4/ lattice of the unique axes of the three g tensors support this assignment. The occurrence of dissociative electron attachment to SO/sup 2 -//sub 4/ and ClO/sup -//sub 4/ contrasts the well-established existence of the radical ions SeO/sup 3 -//sub 4/ and BrO/sup 2 -//sub 4/.
Research Organization:
Department of Chemistry, Aarhus University, Denmark
OSTI ID:
5726413
Journal Information:
J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 84:11; ISSN JCPSA
Country of Publication:
United States
Language:
English