Inorganic Chemistry · 2020 · 24 citations · 48 references
Natural SciencesChemistryMaterials ScienceInorganic ChemistryMagnetic MaterialsSupramolecular ChemistryCoordination ChemistryCrystal ChemistryMetal-ligand BondingSupramolecular MaterialsTransition Metal ComplexesX-ray CrystallographyAxis Of SymmetryIntermolecular Metal-ligand InteractionsLanthanide Coordination ChemistryMagnetic Properties Of Transition Metal ComplexesMagnetism Of Transition Metal ComplexesMolecular MagnetismSupramolecular Coordination ComplexesX-ray Diffraction Analysis
We report comprehensive X-ray diffraction and NMR studies of potassium-induced dimerization of heteroleptic triple-decker crown-phthalocyaninates [(15C5)4Pc]M(Pc)M(Pc) (1M, M = Y and Tb). Characterization of the crystalline dimer 2(1Y)·4KBPh4·12CH3CN·10CHCl3 gave the first structural evidence of the formation of a six-decker structure with four rare earth metal ions perfectly aligned near the symmetry axis. NMR studies of soluble supramolecular dimers 2(1M)·4KOAc provided a spectral–structural model that allowed us to assign the NMR spectra of related complexes with paramagnetic lanthanides and to further evaluate their structure and long-range interaction between the Ln(III) centers in multinuclear tetrapyrrolic complexes. The obtained results are promising for elaboration of new supramolecular magnetic materials.
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