O/sup -/ detected by ESR as a radiation-induced electron-excess defect in KClO/sub 3/

Journal Article · Tue Sep 15 04:00:00 EDT 1981 · J. Chem. Phys.; (United States)

OSTI ID:6003858

Byberg, J R

A family of ESR spectra from KClO/sub 3/ crystals irradiated with x rays at 26 K are assigned to electron-excess defects consisting of O/sup -/ ions trapped in different environments, which may be identified because the electron spin on O/sup -/ polarizes the adjacent ions. In the primary configurations, O/sup -/ is associated with ClO/sup -//sub 2/. Secondary configurations, in which O/sup -/ is trapped between two ClO/sup -//sub 3/ ions, arise from a thermally activated substitution process of the Grotthuss type: leading to migration of the excess negative charge along the crystallographic axis a. The O/sup -/ defects in KClO/sub 3/ are structurally very similar to those observed earlier in irradiated KClO/sub 4/. As in KClO/sub 4/, O/sup -/ reacts with O/sub 2/ at approx.230 K to yield O/sup -//sub 3/.

• Research Organization: Department of Chemistry, Aarhus University, DK-8000 Aarhus C, Denmark
• OSTI ID: 6003858
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 75:6; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360605 -- Materials-- Radiation Effects
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600* -- Radiation Chemistry
ALKALI METAL COMPOUNDS
CHLORATES
CHLORINE COMPOUNDS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
ELECTROMAGNETIC RADIATION
ELECTRON SPIN RESONANCE
HALOGEN COMPOUNDS
IONIZING RADIATIONS
MAGNETIC RESONANCE
OXYGEN COMPOUNDS
PHYSICAL RADIATION EFFECTS
POTASSIUM COMPOUNDS
RADIATION EFFECTS
RADIATIONS
RADICALS
RESONANCE
X RADIATION