Dilithiated salen complexes: chiral [(salen)Li2·hmpa]2and deliberate partial hydrolysis to give [(salen)Li2]3·Li2O·2tmen·H2O [H2salen =N,N′-ethylenebis(salicylideneimine); hmpa = hexamethylphosphoramide; tmen = tetramethylethylenediamine]
- 1 January 1995
- journal article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 20,p. 2147-2149
- https://doi.org/10.1039/c39950002147
Abstract
Chiral [(salen)Li2·hmpa]2 has a Li4O4 cubane-type core in the solid but low-temperature NMR spectroscopy reveals a racemisation equilibrium in solution; deliberate addition of H2O to [(salen)Li2]n in the presence of tmen produces a species having two Li4O4 cubes sharing a common oxygen and containing tmen ligands acting in a hitherto unobserved monofunctional mode.Keywords
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