An uranyl citrate coordination polymer with a 3D open-framework involving uranyl cation-cation interactions

A novel uranyl-organic compound incorporating citrate linker exhibits a 3D open-framework. It is built up from the connection of infinite chains of uranyl-centered polyhedra with citrate ligands, generating layers, which are further linked perpendicularly by isolated uranium tetranuclear motifs, involving uranyl cation-cation interactions.