Synthesis and structural characterization of the first neptunium based metal-organic frameworks incorporating {Np6O8} hexanuclear clustersElectronic supplementary information (ESI) available: Synthesis structural data, gas sorption analysis, and powder X-ray diffraction. CCDC 1837814-1837818 and 1837987. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c8cc03121e

Successful synthesis of the first transuranium metal-organic frameworks (TRU-MOFs) involving tetravalent Np 4+ is reported. These compounds were obtained from the controlled hydrolysis of Np 4+ in the presence of dicarboxylate ligands. The final structures contain the [Np 6 O 4 (OH) 4 (H 2 O) 6 ] 12+ unit, which were never crystallized before with tetravalent neptunium, associated with ditopic ligands. The synthesis of the first transuranium Metal-Organic Frameworks (TRU-MOFs) is reported here.