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Crystal and solution structures of the novel complex of sodium ketimide with two ketimine ligands [(tBu2C = NNa)4(HN = CtBu2)2]: stacking of complexed and uncomplexed (NNa)2 rings to give a highly distorted (NNa)4 cubane

CLEGG, W and MACGREGOR, M and Mulvey, Robert and ONEIL, P A (1992) Crystal and solution structures of the novel complex of sodium ketimide with two ketimine ligands [(tBu2C = NNa)4(HN = CtBu2)2]: stacking of complexed and uncomplexed (NNa)2 rings to give a highly distorted (NNa)4 cubane. Angewandte Chemie International Edition, 31 (1). pp. 93-95. ISSN 1433-7851

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Abstract

Structure determinations of organometallic compounds of alkali metals often reveal new surprises: In the case of the sodium ketimide [(tBu2C = NNa)4(HN = CtBu2)2] 1, nonmetalated ketimine units function surprisingly as monodentate ligands for two of the four Na+ ions in the cubane-like (NNa)4 framework. This contrasts significantly with the well-known lithium ketimides such as (tBu2C = NLi)6, which in general resist complexation. Applying the ''ring-stacking principle'' from organolithium compounds, 1 can be interpreted as a twofold stack of (NNa)2 rings.

Item type: Article
ID code: 37676
Keywords: lithium, sodium ketimide , crystal structures, Physical and theoretical chemistry
Subjects: Science > Chemistry > Physical and theoretical chemistry
Department: Faculty of Science > Pure and Applied Chemistry
Depositing user: Pure Administrator
Date deposited: 15 Feb 2012 12:43
Last modified: 03 Jan 2019 13:15
URI: https://strathprints.strath.ac.uk/id/eprint/37676
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