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EPR spectroscopy on irradiated nickel tetracyanide in NaCl host lattice: mechanism for the simultaneous formation of reduced and oxidized species |
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| Authors: | Maurí cio Braga de Araú jo Nelson Moreira Pinhal and Ney Vernon Vugman |
| Institution: | Instituto de Física, Universidade Federal do Rio de Janeiro, Ilha do Fundão, 21945-970 Rio de Janeiro, Brazil |
| Abstract: | The kinetics of oxidized and reduced Ni2+ complexes produced by X-ray irradiation on single crystals of NaCl doped with Ni(CN)4]2− is studied by Electron Paramagnetic Resonance at room temperature. The interdependent generation of these two complexes is attributed to migration of the charge compensating vacancy from the reduced to the oxidized complex in a reversible reaction. At higher X-ray doses, there is a predominant formation of the reduced complex. |
| Keywords: | Radiation damage mechanisms Nickel tetracyanide EPR spectroscopy |
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