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Synthesis, complexation properties and crystal structure of 4′,5‐dibromo‐o‐xylyl‐17‐crown‐5 ether

Synthesis, complexation properties and crystal structure of 4′,5‐dibromo‐o‐xylyl‐17‐crown‐5 ether 4′, 5′‐Dibromc‐o‐xylyl‐17‐crown‐5 ether (2BrB17C5) was synthesized, starting from 1,2‐dibromo‐4,5‐bis(bromomethyl)‐benzene and tetraethylene glycol, and was characterized by 1H NMR, MS and elemental analysis. Pale yellow prismatic single crystal obtained from anhydrous ethanol was investigated by X‐ray structural analysis. The complexation properties toward alkali metal ions were examined using the solvent extraction method and UV absorption spectroscopy. The crown ether was found to be conformationally deformed and oblate‐like and is highly selective for lithium ion. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Chinese Journal of Chemistry Wiley

Synthesis, complexation properties and crystal structure of 4′,5‐dibromo‐o‐xylyl‐17‐crown‐5 ether

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References (5)

Publisher
Wiley
Copyright
Copyright © 1996 Wiley Subscription Services, Inc., A Wiley Company
ISSN
1001-604X
eISSN
1614-7065
DOI
10.1002/cjoc.19960140510
Publisher site
See Article on Publisher Site

Abstract

4′, 5′‐Dibromc‐o‐xylyl‐17‐crown‐5 ether (2BrB17C5) was synthesized, starting from 1,2‐dibromo‐4,5‐bis(bromomethyl)‐benzene and tetraethylene glycol, and was characterized by 1H NMR, MS and elemental analysis. Pale yellow prismatic single crystal obtained from anhydrous ethanol was investigated by X‐ray structural analysis. The complexation properties toward alkali metal ions were examined using the solvent extraction method and UV absorption spectroscopy. The crown ether was found to be conformationally deformed and oblate‐like and is highly selective for lithium ion.

Journal

Chinese Journal of ChemistryWiley

Published: Sep 1, 1996

Keywords: ; ;

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