Heptakis(2,3-di-O-carboxymethyl)-β-cyclodextrin as a pH-sensitive Host

Acid-dissociation of heptakis(2,3-di-O-carboxymethyl)-β-cyclodextrin occurred between pD 2 and 6. At pD 2.0, 1-pyrenesulfonate was included into the host cavity with a binding constant of 2300 ± 10...