| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Outline of Final Research Achievements |
This report summarize the recent progress of extraction of Sr(II) from neutral solutions. The extractant used is DCH18C6, HFC's used were pure 1,1,1,2,2,3,4,5,5,5-decafluoropentane (Vertrel XF), etc. Although Sr(II) was not extracted to HFC-DCH18C6 organic phase from neutral aqueous solutions, the excellent extraction was found to be occured under the coexistence of some kinds of additives such as perfluoro-3,6,9-trioxaundecane-1,10-dione (PFTOUDA), etc. The slope analysis in the distribution dependence against DCH18C6 and PFTOUDA revealed the stoichiometry of the extracted species Sr(DCH18C6)(PFTOUDA)2. Radial Distribution Function (RDF) of the extracted Sr(II) species were measured in the BL-27B station of the Photon Factory at KEK. Comparison of the obtained RDF with the simulated structure optimized by the ab initio calculation by using Gaussian03 software, has suggestive of the dinuclear structure in the extracted Sr(II) complexes with 4 Angstrom for Sr-Sr distance.
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