Abstract
A series of Fe III and Ga III tris(catecholate) complexes of chiral terephthalamide and catechol has been investigated in aqueous solution with respect to their stereoselective formation of the Δ or Λ coordination isomers. Stereoselectivity is effected by nonbonded, weakly polar interactions between the aryl and methyl substituents of the chiral moieties peripheral to the metal center. The diastereomeric distributions (Δ:Λ) in the complexes were studied in solution using circular dichroism (CD) spectroscopy and 1 H NMR spectroscopy
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