2016 Fiscal Year Final Research Report
Study on cation-cation interaction of neptunium in concentrated aqueous solutions
| Project/Area Number |
26420869
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Nuclear engineering
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| Research Institution | Osaka University (2016)
Kyoto University (2014-2015) |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | ネプツニウム / ラマン分光分析法 / ウラン / カチオン / 分子振動 / イルイオン |
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| Outline of Final Research Achievements |
Coordination circumstance of neptunyl ion in concentrated alkali and alkaline earth chloride solutions was analyzed by Raman spectrometry. The symmetric stretch mode of neptunyl (V) and (VI) , and the asymmetric stretch mode of neptunyl (V) were found. The high Raman intensity of the asymmetric stretch mode indicates a definite cation-cation interaction between neptunyl (V) and solvent cations. It was found that the solvent alkali and alkaline earth cations having larger polarizing power strongly contact with O of neptunyl.
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| Free Research Field |
同位体化学
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