Construction of High-Nuclearity Manganese-Cluster Organic Frameworks by Using a Tripodal Alcohol Ligand

Two novel cluster organic frameworks based on the 12-nuclearity manganese-cluster secondary building unit (SBU), [(Mn4Mn8II)-Mn-III(L)(4)(Ac)(8)(MeO)(2)(mu(5)-O)(2)(H2O)(4)]-(Ac)(2)center dot 16H(2)O (1) and [(Mn4Mn8II)-Mn-III(L)(4)(Ac)(8)(MeO)(2)(mu(5)-O)(2)(H2O)(4)](Ac)(2)center dot 12H(2)O (2), where Ac = CH3COO- and MeO = CH3O, have been constructed from solvothermal reactions of the 3-nuclearity manganese cluster [Mn-3(mu(3)-O)(Ac)(6)(py)(3)](ClO4) (Mn-3, where py = pyridine) with a tripodal alcohol ligand containing a 4-pyridyl group. 1 and 2 represent the first examples of metal-organic frameworks containing 12-nuclearity manganese-cluster SBUs. In addition, 1 exhibits an integration of the porosity and magnetic properties from both the framework and cluster in a porous material.