Abstract
Three Ln(III)/K(I) (Ln = La, Ce and Nd) heterobismetal-capped cucurbit[5]uril molecular capsules, {[LaK(C30H30N20O10)Cl]Cl(H2O)3}Cl2·8H2O (1), {[CeK(C30H30N20O10)Cl]Cl(H2O)3}Cl4(H3O)2 2 + ·8H2O (2) and {[NdK(C30H30N20O10)Cl]Cl(H2O)3}Cl2·12.5H2O (3), were synthesised by self-assembly in aqueous solution, and their anion encapsulation property was confirmed by X-ray crystallography. The effect of the lanthanide cation radius on the structure of the heterobismetal-capped cucurbit[5]uril molecular capsules has been investigated.
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