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Title
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Study of strongly overlapping EPR spectra by high-resolution magnetic resonance techniques
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Author
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Abstract
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| Recent EPR and ENDOR publications demonstrated that several closely related Rh2+ complexes may be simultaneously present in rhodium doped NaCl and AgCl. These complexes only differ with respect to vacancy compensation. They exhibit strongly overlapping X-band EPR spectra with g(perpendicular to) approximate to 2.5 and g(parallel to) approximate to 2. In the present study, solution- and melt-grown NaCl single crystals doped with Rh3+ were subjected to several treatments, such as X-irradiation, heating and thermal pulse annealing. While X-band EPR alone has insufficient resolution to resolve the spectra of the various rhodium complexes, a combined X-band ENDOR and W-band EPR study allows a consistent spectrum decomposition and interpretation. The X- and W-band Rh2+ spectra of both solution- and melt-grown NaCl single crystals are discussed in terms of the same [RhCl6](2-).nvac (n = 0, 1, 2) complexes. |
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Language
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English
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Source (journal)
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Journal of the Chemical Society : Faraday transactions: physical chemistry and chemical physics / Bunsengesellschaft für Physikalische Chemie. - London, 1990 - 1998
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Source (book)
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31st International Meeting of the ESR Group of the Royal-Society-of-Chemistry, 1998, UNIV MANCHESTER, MANCHESTER, ENGLAND
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Publication
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London
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Royal Society of Chemistry
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1998
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ISSN
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0956-5000
[print]
1364-5455
[online]
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Volume/pages
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94
:19
(1998)
, p. 2993-2997
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ISI
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000076287900021
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Full text (Publisher's DOI)
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Full text (open access)
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