Recognition of Anions through NHπ Hydrogen Bonds in a Bicyclic Cyclophane-Selectivity for Nitrate

Recognition of Anions through NHπ Hydrogen Bonds in a Bicyclic Cyclophane-Selectivity for Nitrate

A combination of geometric and electrostatic complemetarity explains why nitrate is bound only slightly less strongly than acetate within the bicyclic cyclophane 1, although nitrate is a significantly weaker base. The crystal structure of the acetate complex of 1 depicts the binding of the anion in...

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Veröffentlicht in:Angewandte Chemie International Edition 1997-11, Vol.36 (21), p.2340-2342
Hauptverfasser: Bisson, Adrian P., Lynch, Vincent M., Monahan, Mary-Katherine C., Anslyn, Eric V.
Format: Artikel
Sprache:eng
Schlagworte:
anion recognition
cyclophanes
host-guest chemistry
hydrogen bonds
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Zusammenfassung:A combination of geometric and electrostatic complemetarity explains why nitrate is bound only slightly less strongly than acetate within the bicyclic cyclophane 1, although nitrate is a significantly weaker base. The crystal structure of the acetate complex of 1 depicts the binding of the anion in the host's cavity, as in the case of the analogous chloride complex.
ISSN:0570-0833
1521-3773
DOI:10.1002/anie.199723401