Slow anion exchange, conformational equilibria, and fluorescent sensing in venus flytrap aminopyridinium-based anion hosts

KJ Wallace, WJ Belcher, DR Turner…

Index: Wallace, Karl J.; Belcher, Warwick J.; Turner, David R.; Syed, Kauser F.; Steed, Jonathan W. Journal of the American Chemical Society, 2003 , vol. 125, # 32 p. 9699 - 9715

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Citation Number: 181

Abstract

The synthesis, anion binding, and conformational properties of a series of 3- aminopyridinium-based, tripodal, tricationic hosts for anions are described. Slow anion and conformational exchange on the 1H NMR time scale at low temperature, coupled with NMR titration, results in a high level of understanding of the anion-binding properties of the compounds, particularly with respect to significant conformational change resulting from ...