Solvothermal synthesis and characterization of 2D to 3D metal-citrate coordination polymer linked by K+ ions: {K[Mn(C6H5O7)(H2O)]}n

The carboxylate-bridged di-manganese cores were interlocked by α- and β-carboxylates of the citrate ligand into 2D layers which are then woven into a novel 3D network by the K+ linkers.