E. Vandienst et al., NOVEL WATER-SOLUBLE CYCLODEXTRIN-CALIX[4]ARENE HOST MOLECULES WITH STRONGLY ENHANCED BINDING-PROPERTIES, Journal of the Chemical Society, Chemical Communications, (11), 1995, pp. 1151-1152
beta-Cyclodextrins appended with a calix[4]arene moiety at the seconda
ry face are very efficient host molecules for the fluorescent dyes 1-a
nilino-8-naphthalenesulfonate and 2-p-toluidino-6-naphthalenesulfonate
with unprecedented high complexation constants.