A novel heterometallic alkoxide: lithium-potassium tert-butoxide [((BuO)-O-t)(8)Li4K4]

Clegg, W and Drummond, A M and Liddle, S T and Mulvey, Robert and Robertson, A (1999) A novel heterometallic alkoxide: lithium-potassium tert-butoxide [((BuO)-O-t)(8)Li4K4]. Chemical Communications (16). pp. 1569-1570. ISSN 1359-7345 (https://doi.org/10.1039/A904800F)

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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 K-4 arrangement in marked contrast to the tetrahedral K-4 arrangement found in homonuclear [((BuOK)-O-t)(4)].