Deciphering the Crystal Structure of a Scarce 1D Polymeric Thorium Peroxo Sulfate

Laura Bonato (1) , Matthieu Virot (1) , Thomas Dumas (2) , Adel Mesbah (3) , Pierre Lecante (4) , Damien Prieur (5) , X. F Le Goff (6) , Christoph Hennig (7) , Nicolas Dacheux (3) , Philippe Moisy (8) , Sergey I. Nikitenko (1)

1 LSFC - Sonochimie dans les Fluides Complexes
2 CEA-DES (ex-DEN) - CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire)
3 LIME - Interfaces de Matériaux en Evolution
4 CEMES - Centre d'élaboration de matériaux et d'études structurales
5 HZDR - Helmholtz-Zentrum Dresden-Rossendorf
6 L2ME - Etude de la Matière en Mode Environnemental
7 ESRF - European Synchrotron Radiation Facility
8 DMRC - Département de recherche sur les procédés pour la mine et le recyclage du combustible

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 to solve the structure of Th(O2)(SO4)(H2O)2 compound which crystallizes in a new structure type in the space group Pna21 of the orthorhombic crystal system. Particularly, peroxide ligand coordinates Th cations in an unusual μ3–η2:η2:η2 bridging mode forming an infinite 1D chain decorated with sulfato ligands exhibit

Domaines: Chimie inorganique; Cristallographie

Laura Bonato, Matthieu Virot, Thomas Dumas, Adel Mesbah, Pierre Lecante, et al.. Deciphering the Crystal Structure of a Scarce 1D Polymeric Thorium Peroxo Sulfate. Chemistry - A European Journal, 2019, 25 (41), pp.9580-9585. ⟨10.1002/chem.201984163⟩. ⟨hal-02921757⟩