H-Bonded complexes of adenine with Rebek imide receptors are stabilised by cation-pi interactions and destabilised by stacking with perfluoroaromatics

Chem Commun (Camb). 2004 Feb 21:(4):370-1. doi: 10.1039/b314353h. Epub 2004 Jan 23.

Abstract

A series of Rebek imide receptors with naphthalene or heteroaromatic platforms attached by amide or ester linkers have been prepared from the corresponding acyl chloride or anhydride; the X-ray crystal structure of the receptor-derived anhydride reveals a supramolecular H-bonded helix formation in the crystal; the complexes of adenine bound to the receptors by Hoogsteen H-bonding are found to be stabilised by stacking with a methylquinolinium ion, but destabilised by stacking with a perfluorinated naphthalene.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Adenine / chemistry*
  • Cations / chemistry
  • Crystallography, X-Ray
  • Fluorobenzenes / chemistry*
  • Hydrogen Bonding
  • Imides / chemistry*
  • Magnetic Resonance Spectroscopy
  • Models, Molecular
  • Molecular Structure

Substances

  • Cations
  • Fluorobenzenes
  • Imides
  • Adenine