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The Self-Assembly of a Predesigned Tetrahedral M4L6 Supramolecular Cluster
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1998
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Materials ScienceInorganic ChemistrySupramolecular AssemblyEngineeringNmr SpectroscopyNatural SciencesMolecular Self-assemblySelf-assemblyPhysical ChemistryCluster ChemistryMain Group ChemistryChemistryCluster CavitySupramolecular ChemistryCrystallographySolid State
A remarkable selectivity on the basis of size is observed for the encapsulation of Et4N+ in the presence of Me4N+ and Pr4N+ by a predesigned [Ga4L6]12− homochiral tetrahedral cluster (L=bis-bidentate ligand). Immediate and quantitative stepwise replacement of R4N+ counterions in the cluster cavity is observed by 1H NMR spectroscopy (see below). The encapsulation of Et4N+ is also observed in the solid state.