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 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