Electron-gain and -loss centres in oxyanions containing S–S bonds: an electron spin resonance study

Abstract

The oxyions S₂O₄^2–, S₂O₅^2– and S₂O₆^2– have been exposed to ionizing radiation at 77 K in the hope of trapping the primary electron-gain and -loss centres for study by ESR spectroscopy. In order to distinguish features for the electron-capture centres uniquely, dilute glasses containing these anions were also irradiated at 77 K and their spectra studied. In all cases, in addition to central features for the normal ³²S centres, various species containing one ³³S have been detected. Possible structures for these species are proposed. Changes that occurred on warming to room temperature are discussed in the light of these identifications.