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Article Abstract
Temperature-dependent metalation of the new hexadentate ligand (tris(5-(pyridin-2-yl)-1H-pyrrol-2-yl)methane; HTPM) enables the selective synthesis of both mononuclear (i.e. Na(THF)[Fe(TPM)], kinetic product) and trinuclear (i.e. Fe(TPM), thermodynamic product) complexes. Exposure of Na(THF)[Fe(TPM)] to FeCl or ZnCl triggers cluster expansion to generate homo- or heterometallic trinuclear complexes, respectively. The developed approach enables systematic variation of ion content in isostructural metal clusters via programmed assembly.
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