Mj. Hardie et al., Cooperative hydrogen bonding and yttrium(III) complexation in the assemblyof molecular capsules, CHEM COMMUN, (10), 2000, pp. 849-850
A combination of hydrogen bonding and metal coordination leads to the forma
tion of the new solid state molecular capsule [{18-crown-6}subset of{(Y(H2O
)(7)(3+))(1.33)(p- sulfonatocalix[4]arene(4-))}(2)] at pH between 1.0 and 4
.0.