Anion binding properties of tris(2-hydroxyphenyl)methanes

Research paper by Tatsunori Sato, Kazuaki Ito

Indexed on: 09 Nov '12Published on: 09 Nov '12Published in: Journal of Inclusion Phenomena and Macrocyclic Chemistry


Tris(2-hydroxyphenyl)methane derivatives (1) displayed excellent selectivity for Cl− in comparison with other anions tested (Br−, I− and NO3−) by 1H NMR titration experiments. This selectivity is attributed to the fit size and shape of Cl−, which favor the formation of a stable host–guest complex with 1 through the multiple intermolecular hydrogen bonds.