Americium(iii ) and europium(iii ) complex formation with lactate at elevated temperatures studied by spectroscopy and quantum chemical calculations
| Autor: | Astrid Barkleit, Jerome Kretzschmar, Satoru Tsushima, Margret Acker |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Americium
Hot Temperature Magnetic Resonance Spectroscopy Denticity Enthalpy Inorganic chemistry chemistry.chemical_element Nuclear magnetic resonance spectroscopy Fluorescence spectroscopy Inorganic Chemistry chemistry.chemical_compound Europium Models Chemical chemistry Ionic strength Spectroscopy Fourier Transform Infrared Quantum Theory Thermodynamics Lactic Acid Carboxylate Spectroscopy |
| Zdroj: | Dalton Trans.. 43:11221-11232 |
| ISSN: | 1477-9234 1477-9226 |
| DOI: | 10.1039/c4dt00440j |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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