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Spectroscopic study on the complexation of trivalent actinide and lanthanide ions with TEDGA in solution

NMR spectroscopy studies on the complexation of La(III), Sm(III), Lu(III), Y(III) and Am(III) with N,N,N′,N′-tetraethyldiglycolamide (TEDGA) have been performed. Initial studies concerning the stoichiometry of the complexes prove the formation of [M(TEDGA)3]3+ in D2O and [M(TEDGA)1-3]3+ in CD3CN. De...

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Bibliographic Details
Main Authors: Sittel, Thomas (Author) , Meißner, Maximilian (Author) , Keller, Max (Author) , Geist, Andreas (Author) , Panak, Petra (Author)
Format: Article (Journal)
Language:English
Published: April 2, 2024
In: European journal of inorganic chemistry
Year: 2024, Volume: 27, Issue: 10, Pages: 1-8
ISSN:1099-0682
DOI:10.1002/ejic.202300720
Online Access:Verlag, kostenfrei, Volltext: https://doi.org/10.1002/ejic.202300720
Verlag, kostenfrei, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/ejic.202300720
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Author Notes:Thomas Sittel, Maximilian Meißner, Max Keller, Andreas Geist, and Petra J. Panak
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Summary:NMR spectroscopy studies on the complexation of La(III), Sm(III), Lu(III), Y(III) and Am(III) with N,N,N′,N′-tetraethyldiglycolamide (TEDGA) have been performed. Initial studies concerning the stoichiometry of the complexes prove the formation of [M(TEDGA)3]3+ in D2O and [M(TEDGA)1-3]3+ in CD3CN. Decreasing the solvent polarity translates to an increase of the complex stability as shown by complementary TRLFS studies with Cm(III). Due to delocalization of the lone electron pair of the amide nitrogen atom, the M(III)−O interaction has been studied indirectly by collecting 13C and 15N NMR data. The observed chemical shifts prove that the interaction of the trivalent ions, An(III) and Ln(III), and TEDGA is almost identical.
Item Description:Zuerst veröffentlicht: 18. Januar 2024
Gesehen am 10.06.2024
Physical Description:Online Resource
ISSN:1099-0682
DOI:10.1002/ejic.202300720

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