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Redox-dependant sulphate coordination of neptunium in aqueous solutions

水溶液中のネプツニウムに対する硫酸配位の価数依存性に関する研究

Hennig, C.*; 池田 篤史  ; 津島 悟*; Scheinost, A. C.*

Hennig, C.*; Ikeda, Atsushi; Tsushima, Satoru*; Scheinost, A. C.*

水溶液中でネプツニウムと硫酸が形成する溶存錯体において、硫酸イオンの配位様式が価数によって単座・二座と複雑に変化することをX線吸収分光法によって明らかにした。

The sulphate coordination to neptunium ion has been investigated in aqueous solution by X-ray absorption spectroscopy. The results suggest that the coordination mode of sulphate ion strongly depends the oxidation state of neptunium, and changes from uni- to bidentate modes.

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