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@ARTICLE{Weling:910340,
author = {Weßling, Patrik and Maag, Melina and Baruth, Giana and
Sittel, Thomas and Sauerwein, Fynn S. and Wilden, Andreas
and Modolo, Giuseppe and Geist, Andreas and Panak, Petra J.},
title = {{C}omplexation and {E}xtraction {S}tudies of {T}rivalent
{A}ctinides and {L}anthanides with {W}ater-{S}oluble and
{CHON}-{C}ompatible {L}igands for the {S}elective
{E}xtraction of {A}mericium},
journal = {Inorganic chemistry},
volume = {61},
number = {44},
issn = {0020-1669},
address = {Washington, DC},
publisher = {American Chemical Society},
reportid = {FZJ-2022-03759},
pages = {17719–17729},
year = {2022},
abstract = {Novel 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).},
cin = {IEK-6},
ddc = {540},
cid = {I:(DE-Juel1)IEK-6-20101013},
pnm = {1412 - Predisposal (POF4-141) / PATRICIA - Partitioning And
Transmuter Research Initiative in a Collaborative Innovation
Action (945077) / BMBF-02NUK059D - Spektroskopische
Charakterisierung von f-Element-Komplexen mit soft
donor-Liganden (f-Char) (BMBF-02NUK059D)},
pid = {G:(DE-HGF)POF4-1412 / G:(EU-Grant)945077 /
G:(DE-Juel1)BMBF-02NUK059D},
typ = {PUB:(DE-HGF)16},
pubmed = {36274232},
UT = {WOS:000877103700001},
doi = {10.1021/acs.inorgchem.2c02871},
url = {https://juser.fz-juelich.de/record/910340},
}