化学
铀酰
酰胺
硝酸
取代基
铀
配位复合体
乏核燃料
硝酸铀酰
无机化学
菲咯啉
配体(生物化学)
硝酸盐
核化学
有机化学
离子
金属
材料科学
冶金
受体
生物化学
作者
Svetlana V. Gutorova,Petr I. Matveev,Pavel S. Lemport,Alexander L. Trigub,A S Pozdeev,Alexandr V. Yatsenko,Boris N. Tarasevich,Ekaterina A. Konopkina,Ennie K. Khult,Vitaly A. Roznyatovsky,Yu. V. Nelyubina,K. L. Isakovskaya,Victor N. Khrustalev,V. Petrov,A S Aldoshin,Yu. A. Ustynyuk,Stepan N. Kalmykov,Valentine G. Nenajdenko
标识
DOI:10.1021/acs.inorgchem.1c02982
摘要
Reprocessing of spent nuclear fuel (SNF) is an important task in a frame of ecology and rational use of natural resources. Uranium, as the main component of SNF (>95%), can be recovered for further use as fresh nuclear fuel. To minimize an amount of solid radioactive waste generated during SNF reprocessing, new extractants are under investigation. Diamides of 1,10-phenanthroline-2,9-dicarboxylic acid are perspective tetradentate N-donor ligands that form strong complexes with f-elements, which are soluble in polar organic solvents. As an example of three ligands of this class, we conducted a comparative study and showed how the substituent in the amide functional group affects the extraction ability toward uranyl nitrate from nitric acid media. We have performed a careful study (NMR, FT-IR, XRD, RMC-EXAFS) of the structures of synthesized complexes of new ligands with uranyl nitrate and used quantum mechanical calculations to explain the discovered regularities through.
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