| A hetero-alkali-metal version of the utility amide LDA: lithium-potassium diisopropylamide. | |
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MedLine Citation:
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PMID: 23299468 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Designed to extend the synthetically important alkali-metal diisopropylamide [N(i)Pr(2); DA] class of compounds, the first example of a hetero-alkali-metallic complex of DA has been prepared as a partial TMEDA solvate. Revealed by an X-ray crystallographic study, its structure exists as a discrete lithium-rich trinuclear Li(2)KN(3) heterocycle, with TMEDA only solvating the largest of the alkali-metals, with the two-coordinate lithium atoms being close to linearity [161.9(2)°]. A variety of NMR spectroscopic studies, including variable temperature and DOSY NMR experiments, suggests that this new form of LDA maintains its integrity in non-polar hydrocarbon solution. This complex thus represents a rare example of a KDA molecule which is soluble in non-polar medium without the need for excessive amounts of solubilizing Lewis donor being added. |
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Authors:
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David R Armstrong; Alan R Kennedy; Robert E Mulvey; Stuart D Robertson |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2013-1-9 |
Journal Detail:
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Title: Dalton transactions (Cambridge, England : 2003) Volume: - ISSN: 1477-9234 ISO Abbreviation: Dalton Trans Publication Date: 2013 Jan |
Date Detail:
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Created Date: 2013-1-9 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101176026 Medline TA: Dalton Trans Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow, G1 1XL, UK. r.e.mulvey@strath.ac.uk stuart.d.robertson@strath.ac.uk. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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