Modifying the Donor Properties of Tris(pyridyl)aluminates in Lanthanide (II) Sandwich Compounds
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Peer-reviewed
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Abstract
The coordination ability of tris(pyridyl)aluminates can be modified by the steric and electronic character of substituents at the 6-positions of their pyridyl rings. Whereas [EtAl(6-Me-2-py)3]- (1) coordinates strongly to lanthanide (II) ions [Eu(II) and Yb(II)], [EtAl(6-Br-2-py)3]- (2) forms much weaker complexes, and [EtAl(6-CF3-2-py)3]- does not coordinate at all. The modification of the donor ability of these ligands is investigated by solid-state studies of the Ln(II) sandwich compounds and by competitive coordination studies in solution.
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Keywords
3402 Inorganic Chemistry, 34 Chemical Sciences
Journal Title
Dalton Transactions
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1477-9226
1477-9234
1477-9234
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Royal Society of Chemistry
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Engineering and Physical Sciences Research Council (EP/K039520/1)