Issue 29, 2014

Americium(iii) and europium(iii) complex formation with lactate at elevated temperatures studied by spectroscopy and quantum chemical calculations

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. ATR FT-IR and NMR spectroscopy in combination with density functional theory (DFT) calculations revealed structural details of the Eu(III) lactate 1 : 1 complex: a chelating coordination mode of the lactate with a monodentate binding carboxylate group and the hydroxyl group being deprotonated.

Graphical abstract: Americium(iii) and europium(iii) complex formation with lactate at elevated temperatures studied by spectroscopy and quantum chemical calculations

Supplementary files

Article information

Article type
Paper
Submitted
11 Feb 2014
Accepted
05 May 2014
First published
06 May 2014
This article is Open Access
Creative Commons BY-NC license

Dalton Trans., 2014,43, 11221-11232

Author version available

Americium(III) and europium(III) complex formation with lactate at elevated temperatures studied by spectroscopy and quantum chemical calculations

A. Barkleit, J. Kretzschmar, S. Tsushima and M. Acker, Dalton Trans., 2014, 43, 11221 DOI: 10.1039/C4DT00440J

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