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DOI: 10.1039/A904800F (Paper) Reference Section for: Chem. Commun., 1999, 1569-1570

A novel heterometallic alkoxide: lithium–potassium tert-butoxide [(ButO)8Li4K4]

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William Clegg, Stephen T. Liddle, Allison M. Drummond, Robert E. Mulvey and Alan Robertson

Abstract

Synthesised from its homonuclear components in the presence of the Lewis base TMEDA, the title heteronuclear alkoxide crystallises in an unsolvated TMEDA-free form; its novel breastplate-like Li4K4O8 cage structure, which undergoes an exchange process in arene solution as determined by dynamic NMR spectroscopic studies, displays a planar K4 arrangement in marked contrast to the tetrahedral K4 arrangement found in homonuclear [(ButOK)4].

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