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Deciphering the Crystal Structure of a Scarce 1D Polymeric Thorium Peroxo Sulfate |
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| Authors: | Laura Bonato Dr Matthieu Virot Dr Thomas Dumas Dr Adel Mesbah Dr Pierre Lecante Dr Damien Prieur Dr Xavier Le Goff Dr Christoph Hennig Prof Nicolas Dacheux Dr Philippe Moisy Dr Sergey I Nikitenko |
| Institution: | 1. ICSM, CEA, CNRS, ENSCM, Université Montpellier, Site de Marcoule, Bat 426, 30207 Bagnols sur Ceze, France;2. Department of Mining and Fuel Recycling Processes (DMRC), Site de Marcoule, Atomic and Alternative Energies Commission (CEA), Nuclear Energy Division, BP17171, 30207 Bagnols sur Cèze, France;3. Groupe SINanO, CEMES-CNRS, 29 rue Jeanne Marvig, 31055 Toulouse Cedex 4, France;4. Institute of Resource Ecology, Helmholtz-Zentrum Dresden–Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany |
| Abstract: | The preparation and structural characterization of an original Th peroxo sulfate dihydrate, crystallizing at room temperature in the form of stable 1D polymeric microfibres is described. A combination of laboratory and synchrotron techniques allowed solution of the structure of the Th(O2)(SO4)(H2O)2 compound, which crystallizes in a new structure type in the space group Pna21 of the orthorhombic crystal system. Particularly, the peroxide ligand coordinates to the Th cations in an unusual μ3-η2:η2:η2 bridging mode, forming an infinite 1D chain decorated with sulfato ligands exhibiting simultaneously monodentate and bidentate coordination modes. |
| Keywords: | peroxide spectroscopic techniques structure elucidation sulfate thorium |