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000910340 0247_ $$2doi$$a10.1021/acs.inorgchem.2c02871
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000910340 1001_ $$00000-0002-4410-5344$$aWeßling, Patrik$$b0$$eCorresponding author
000910340 245__ $$aComplexation and Extraction Studies of Trivalent Actinides and Lanthanides with Water-Soluble and CHON-Compatible Ligands for the Selective Extraction of Americium
000910340 260__ $$aWashington, DC$$bAmerican Chemical Society$$c2022
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000910340 520__ $$aNovel hydrophilic ligands to selectively separate Am(III) are synthesized: 3,3′-([2,2′-bipyridine]-6,6′-diylbis(1H-1,2,3-triazole-4,1-diyl))bis(propan-1-ol) (PrOH-BPTD) and 3,3′-([2,2′-bipyridine]-6,6′-diylbis(1H-1,2,3-triazole-4,1-diyl))bis(ethan-1-ol) (EtOH-BPTD). The complexation of An(III) and Ln(III) with PrOH- and EtOH-BPTD is studied by time-resolved laser fluorescence spectroscopy. [ML2]3+ is found for both Cm(III) and Eu(III), while [ML]3+ is only formed with Cm(III). Stability constants show a preferential coordination of Cm(III) over Eu(III) with PrOH-BPTD being the stronger ligand. The distribution of Am(III), Cm(III), and Ln(III) between an organic phase containing the extracting agent N,N,N′,N′-tetra-n-octyl-3-oxapentanediamide (TODGA) and aqueous phases containing PrOH-BPTD is studied as a function of time and temperature as well as the TODGA, BPTD, and HNO3 concentrations. A system composed of 0.2 mol/L TODGA and 0.04 mol/L PrOH-BPTD in 0.33–0.39 mol/L HNO3 allows for selective Am(III) back-extraction into the aqueous phase while keeping Cm(III) and Ln(III) in the organic phase, marking PrOH-BPTD as an excellent complexant for an optimized AmSel process (Am(III) selective extraction).
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000910340 536__ $$0G:(DE-Juel1)BMBF-02NUK059D$$aBMBF-02NUK059D - Spektroskopische Charakterisierung von f-Element-Komplexen mit soft donor-Liganden (f-Char) (BMBF-02NUK059D)$$cBMBF-02NUK059D$$x2
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000910340 7001_ $$0P:(DE-HGF)0$$aMaag, Melina$$b1
000910340 7001_ $$0P:(DE-HGF)0$$aBaruth, Giana$$b2
000910340 7001_ $$00000-0003-3523-036X$$aSittel, Thomas$$b3
000910340 7001_ $$0P:(DE-Juel1)167486$$aSauerwein, Fynn S.$$b4
000910340 7001_ $$0P:(DE-Juel1)130438$$aWilden, Andreas$$b5
000910340 7001_ $$0P:(DE-Juel1)130383$$aModolo, Giuseppe$$b6$$ufzj
000910340 7001_ $$0P:(DE-HGF)0$$aGeist, Andreas$$b7
000910340 7001_ $$0P:(DE-HGF)0$$aPanak, Petra J.$$b8
000910340 773__ $$0PERI:(DE-600)1484438-2$$a10.1021/acs.inorgchem.2c02871$$gp. acs.inorgchem.2c02871$$n44$$p17719–17729$$tInorganic chemistry$$v61$$x0020-1669$$y2022
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000910340 8564_ $$uhttps://juser.fz-juelich.de/record/910340/files/We%C3%9Fling%20et%20al%202022.pdf$$yPublished on 2022-10-23. Available in OpenAccess from 2023-10-23.
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