Ion??Pair Complexation with a Cavitand Receptor

F Tancini, T Gottschalk, WB Schweizer…

Index: Tancini, Francesca; Gottschalk, Thomas; Bernd Schweizer; Diederich, Francois; Dalcanale, Enrico Chemistry - A European Journal, 2010 , vol. 16, # 26 p. 7813 - 7819

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Citation Number: 18

Abstract

Abstract The capability of resorcinarenes to bind anions within the alkyl feet at the lower rim has been exploited as the starting point for developing a new cavitand able to engulf contact ion pairs of primary ammonium salts in chlorinated solvents with association constants (K ass) in the range of 10 3–10 4 M− 1. Methylene bridges were introduced into the upper rim to freeze the resorcinarene in the cone conformation with the four H down protons ...