Ayme, Jean-Francois, Beves, Jonathan E., Campbell, Christopher J. , Gil-Ramirez, Guzman, Leigh, David A. and Stephens, Alexander J. (2015) Strong and selective anion binding within the central cavity of molecular knots and links. Journal of the American Chemical Society, 137 (31). pp. 9812-9815. ISSN 0002-7863
Full content URL: http://pubs.acs.org/doi/full/10.1021/jacs.5b06340
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jacs.5b06340.pdf - Whole Document Available under License Creative Commons Attribution. 1MB |
| Item Type: | Article |
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| Item Status: | Live Archive |
Abstract
A molecular pentafoil knot and doubly and triply entwined [2]catenanes based on circular Fe(II) double helicate scaffolds bind halide anions in their central cavities through electrostatic and CH···X– hydrogen-bonding interactions. The binding is up to (3.6 ± 0.2) × 1010 M–1 in acetonitrile (for pentafoil knot [2·Cl](PF6)9), making these topologically complex host molecules some of the strongest synthetic noncovalent binders of halide anions measured to date, comparable in chloride ion affinity to silver salts.
| Keywords: | Hydrogen bonds, Negative ions, Salts, Scaffolds, Anion binding, Chloride ions, Halide anions, Host molecules, Hydrogen bonding interactions, Molecular knots, Silver salts, 2catenanes, Ions, acetonitrile, catenane, chloride ion, ferrous ion, halide, silver, Article, binding affinity, crystal structure, hydrogen bond, synthesis, JCOpen |
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| Subjects: | F Physical Sciences > F100 Chemistry |
| Divisions: | College of Science > School of Chemistry |
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| ID Code: | 22719 |
| Deposited On: | 29 Apr 2016 09:55 |
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