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Title: Interdisciplinary Round-Robin Test on Molecular Spectroscopy of the U(VI) Acetate System

Journal Article · · ACS Omega
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  1. Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Dresden (Germany)
  2. Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Dresden (Germany); Tokyo Inst. of Technology (Japan)
  3. Univ. Of Potsdam (Germany)
  4. Institut de Recherche de Chimie Paris (IRCP), Paris (France)
  5. Karlsruhe Inst. of Technology (KIT) (Germany)
  6. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  7. KTH Royal Inst. of Technology, Stockholm (Sweden)
  8. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  9. Univ. of Toulon, Toulon (France)
  10. Technische Univ. Munchen, Garching (Germany)
  11. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  12. Univ. of Côte d'Azur, Nice (France)
  13. Institut de Radioprotection et de Sûreté Nucléaire (IRSN/PSE-ENV/SRTE/LR2T), Saint Paul lez Durance (France)
  14. Institute for Nuclear Waste Disposal (KIT-INE), Karlsruhe Institute of Technology, P.O. Box 3640, 76021 Karlsruhe, Germany
  15. Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Dresden (Germany); Technische Universität Dresden (Germany)
  16. Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Dresden (Germany); Karlsruhe Inst. of Technology (KIT) (Germany)
  17. Institute of Resource Ecology, Helmholtz-Zentrum Dresden—Rossendorf, Bautzner Landstr. 400, D-01328 Dresden, Germany
  18. Department of Chemistry, Technische Universität München, Lichtenbergstr. 4, 85748 Garching, Germany
  19. Cardiff Univ., Cardiff (United Kingdom)
  20. Karlsruhe Inst. of Technology (KIT) (Germany); Heidelberg Univ. (Germany)
  21. Clemson Univ., Anderson, SC (United States)
  22. Univ. Paris-Saclay, Gif-sur-Yvette (France)
  23. Technische Univ. Munchen, Garching (Germany); Inst. of High Performance Computing, Agency for Science, Technology and Research (Singapore)
  24. Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Dresden (Germany); European Synchrotron Radiation Facility (ESRF), Grenoble (France)
  25. Univ. of Manitoba, Winnipeg, MN (Canada)
  26. Univ. Paris-Sud, Orsay (France)
  27. Synchrotron SOLEIL, Gif-sur-Yvette (France)

A comprehensive molecular analysis of a simple aqueous complexing system–U(VI) acetate–selected to be independently investigated by various spectroscopic (vibrational, luminescence, X-ray absorption, and nuclear magnetic resonance spectroscopy) and quantum chemical methods was achieved by an international round-robin test (RRT). Twenty laboratories from six different countries with a focus on actinide or geochemical research participated and contributed to this scientific endeavor. The outcomes of this RRT were considered on two levels of complexity: first, within each technical discipline, conformities as well as discrepancies of the results and their sources were evaluated. The raw data from the different experimental approaches were found to be generally consistent. Specifically, for complex setups such as accelerator-based X-ray absorption spectroscopy, the agreement between the raw data was high. By contrast, luminescence spectroscopic data turned out to be strongly related to the chosen acquisition parameters. Second, the potentials and limitations of coupling various spectroscopic and theoretical approaches for the comprehensive study of actinide molecular complexes were assessed. Previous spectroscopic data from the literature were revised and the benchmark data on the U(VI) acetate system provided an unambiguous molecular interpretation based on the correlation of spectroscopic and theoretical results. The multimethodologic approach and the conclusions drawn address not only important aspects of actinide spectroscopy but particularly general aspects of modern molecular analytical chemistry.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences, and Biosciences Division
Grant/Contract Number:
AC52-07NA27344; AC52-06NA25396; SC0010355; 89233218CNA000001; AC05-76RL01830
OSTI ID:
1510554
Alternate ID(s):
OSTI ID: 1523827; OSTI ID: 1524394; OSTI ID: 1560369; OSTI ID: 1835691
Report Number(s):
LA-UR-18-20138; PNNL-SA-143380; LLNL-JRNL-799343
Journal Information:
ACS Omega, Vol. 4, Issue 5; ISSN 2470-1343
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

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Combining luminescence spectroscopy, parallel factor analysis and quantum chemistry to reveal metal speciation – a case study of uranyl( vi ) hydrolysis journal January 2015
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Photochemical characterization of uranyl interaction with acetic acid journal December 2014
Aqueous Solutions of Uranium(VI) as Studied by Time-Resolved Emission Spectroscopy: A Round-Robin Test journal August 2003
Equilibria and dynamics in binary and ternary uranyl oxalate and acetate/fluoride complexes † journal January 1999
Advanced Statistical and Numerical Methods for Spectroscopic Characterization of Protein Structural Evolution journal July 2010
Accurate and Precise Wavelength Calibration for Wide Bandwidth Array Spectrometers journal September 2008
Crystal and molecular structure of uranyl acetate dihydrate journal September 1975
Energy‐adjusted pseudopotentials for the actinides. Parameter sets and test calculations for thorium and thorium monoxide journal May 1994

Figures / Tables (7)