Selective Binding of Group IIIA and Lanthanide Metals by Hexahomotrioxacalix[3]arene Macrocycles

Selective Binding of Group IIIA and Lanthanide Metals by Hexahomotrioxacalix[3]arene Macrocycles

The hexahomotrioxacalix[3]arene macrocycles 1 are observed to bind trivalent metals (Sc3+, Lu3+,Y3+, La3+) more strongly than alkali metal ions (Li+, Na+, K+). Complexes of macrocycle 1a with Lu(III) (3), Y(III) (4), and La(III) (5) have been structurally characterized to be μ-aryloxo-bridged dimers...

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Veröffentlicht in:Journal of the American Chemical Society 1996-08, Vol.118 (33), p.7769-7773
Hauptverfasser: Daitch, Charles E, Hampton, Philip D, Duesler, Eileen N
Format: Artikel
Sprache:eng
Schlagworte:
40 CHEMISTRY
ACTIVATION ENERGY
CRYSTALLOGRAPHY
LANTHANUM COMPLEXES
LITHIUM COMPLEXES
LUTETIUM COMPLEXES
NMR SPECTRA
ORGANIC COMPOUNDS
POTASSIUM COMPLEXES
SCANDIUM COMPLEXES
SODIUM COMPLEXES
STRUCTURAL CHEMICAL ANALYSIS
SYNTHESIS
YTTRIUM COMPLEXES
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Zusammenfassung:The hexahomotrioxacalix[3]arene macrocycles 1 are observed to bind trivalent metals (Sc3+, Lu3+,Y3+, La3+) more strongly than alkali metal ions (Li+, Na+, K+). Complexes of macrocycle 1a with Lu(III) (3), Y(III) (4), and La(III) (5) have been structurally characterized to be μ-aryloxo-bridged dimers with the formula [M(L)(DMSO)]2 (M = Lu, Y, La; L = trianion of macrocycle 1a). Periodic trends in the structures and dynamic behavior of the complexes are discussed.
ISSN:0002-7863
1520-5126
DOI:10.1021/ja9605984