Premium
Anion Complexation and The Hofmeister Effect
Author(s) -
Carnegie Ryan S.,
Gibb Corinne L. D.,
Gibb Bruce C.
Publication year - 2014
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201405796
Subject(s) - hofmeister series , chemistry , cavitand , counterion , carboxylate , salt (chemistry) , ion , inorganic chemistry , stereochemistry , crystallography , computational chemistry , organic chemistry , supramolecular chemistry , crystal structure
The 1 H NMR spectroscopic analysis of the binding of the ClO 4 − anion to the hydrophobic, concave binding site of a deep‐cavity cavitand is presented. The strength of association between the host and the ClO 4 − anion is controlled by both the nature and concentration of co‐salts in a manner that follows the Hofmeister series. A model that partitions this trend into the competitive binding of the co‐salt anion to the hydrophobic pocket of the host and counterion binding to its external carboxylate groups successfully accounts for the observed changes in ClO 4 − affinity.