A new podand ligand has been designed and synthesized which reacts hydrothermally with either Nd(III) or Gd(III) nitrate forming an array of linked metallocycles with void spaces. Discrete dodecameric water clusters occupy the voids in the structures. The structure of the cluster can be described as an open-cube octamer buttressed on two sides by dimers to form the overall dodecamer. These clusters join different arrays of linked metallocycles.
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