Americium(III) and Europium(III) Complex Formation with Lactate at Elevated Temperatures Studied by Spectroscopy and Quantum Chemical Calculations
Americium(III) and Europium(III) Complex Formation with Lactate at Elevated Temperatures Studied by Spectroscopy and Quantum Chemical Calculations
Barkleit, A.; Kretzschmar, J.; Tsushima, S.; Acker, M.
Abstract
Thermodynamic parameters for the complex formation of Am(III) and Eu(III) with lactate were determined with UV-vis and time-resolved laser-induced fluorescence spectroscopy (TRLFS) in a temperature range between 25 and 70 °C. The reaction enthalpy decreased with increasing ionic strength. FT-IR and NMR spectroscopy in combination with density functional theory (DFT) calculations revealed structural details of the Eu(III) lactate complex: a chelating coordination mode of the lactate with a monodentate binding carboxylate group and the hydroxyl group being deprotonated.
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Dalton Transactions 43(2014)29, 11221-11232
DOI: 10.1039/C4DT00440J
Cited 28 times in Scopus
Permalink: https://www.hzdr.de/publications/Publ-20034