%0 Journal Article
%T Chlorine Anion Encapsulation by Molecular Capsules Based on Cucurbit[5]uril and Decamethylcucurbit[5]uril
%A Yun-Qian Zhang
%A Qian-Jiang Zhu
%A Sai-Feng Xue
%A Zhu Tao
%J Molecules
%D 2007
%I MDPI AG
%R 10.3390/12071325
%X Three barrel-shaped artificial molecular capsules 1-3, based on normal cucurbit[5]uril (Q[5]) and decamethylcucurbit[5]uril (Me10Q[5]), were synthesized and structurally characterized by single-crystal X-ray diffraction. Encapsulation of a chlorine anion in the cavity of a Q[5] or Me10Q[5] to form closed a molecular capsule with the coordinated metal ions or coordinated metal ions and water molecules in the crystal structures of these compounds is common. The three complexes [Pr2(C30H30N20O10)Cl3(H2O)13]3+3Cl-，5H2O (1), [Sr2(C40H50N20O10)(H2O)4Cl]3+3Cl-，2(HCl) 19H2O (2) and [K(C40H50N20O10)(H2O)Cl]，[Zn(H2O)2Cl2]，[ZnCl4]2-，2(H3O)+，8H2O (3) all crystallize as isolated molecular capsules.
%K Cucurbit[5]uril
%K decamethylcucurbit[5]uril
%K crystal structure
%K molecular capsules.
%U http://www.mdpi.com/1420-3049/12/7/1325