Unlike compound compound adopts three distinct thorium

Th(1) is face sharing two hydroxyl groups and one coordinated water molecule with adjacent symmetry equivalent Th(1) centers, forming a pseudo-dimer topology. The dimers are further linked by the sulfate anions along b and c axis to form discrete chains as shown in Fig. 3c. Both Th(2) and Th(3) centers present local coordination environment of nine, where seven oxygen atoms are from seven unique SO42− groups, and the rest two coordinate sites are occupied by the water molecules ( Fig. 3b).