Novel synthetic route to soluble polyanions: synthesis and crystal structure of [K(18-crown-6)]4[Pb9]·en·tol†

Abstract

[K(18-crown-6)]₄[Pb₉] was obtained by a novel synthetic procedure, which allows the generation of polyanions by direct reduction of the elements in molten crown ethers at temperatures slightly above 40 °C; the crystal structure refinement shows the coordination of three K atoms to the nonaplumbide anion.