Hyperfine Interactions in the Electron Spin Resonance of Hydrated Electrons

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Abstract
An attempt has been made to interpret the hyperfine structure in the electron spin resonance of hydrated electrons observed at low temperatures. The unpaired electron spin distribution has been calculated with the orthogonalized wavefunction on the basis of the model presented. It has been found that the unpaired electron is mainly localized on the O–H bonds which point toward the center of a cavity and that a sharp peak in the wavefunction occurs in the vicinity of the oxygen nucleus. A calculation has also been made of the linewidth in the ESR spectrum of trapped electrons in deuterium oxide.