Synergic anion and cation coordination using the tripodal aluminate anion [MeAl(2-py)3]− (py = 2-pyridyl)

Abstract

The coordination of AlCl₃ by the complex [{MeAl(2-py)₃}Li·thf] (1) gives the unusual product [{MeAl(2-py)₃}₂Al]⁺[{MeAl(2-py)₃}Li]₂(μ-Cl)⁻ (2), in which the [MeAl(2-py)₃]⁻ aluminate anion of 2 acts cooperatively in the coordination of an Al³⁺ cation and Cl⁻ anion.