Molecular capsules formed by three different cucurbit[5]urils and some lanthanide ions

  • Zhang Y
  • Zeng J
  • Zhu Q
 et al. 
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Abstract

Four molecular capsules based on three different cucurbit[5]urils, which are Dimethyl cucurbit[5]uril (DMeQ[5]), decamethylcucurbit[5]uril (Me10Q[5]) and the normal cucurbit[5]uril, were synthesized and structurally characterized by single-crystal X-ray diffractions. They are {[Gd2(H2O)9][DMeQ[5]@Cl]}5+·5Cl-·13(H2O) (1), {[Nd2(H2O)8Cl][Me10Q[5]@Cl]}4+·4Cl-·9(H2O) (2), {K(H2O)2Cl·{[[Dy2(H2O)6Cl][Q [5]@Cl]}2}8+·2{[Dy2(H2O)7Cl][Q[5]@Cl]}4+·16Cl-·44(H2O) (3) and 2{[Y2(H2O)8][Me10Q[5]@Cl]}5+·10Cl-·48(H2O) (4). In the crystal structure of these compounds, molecular capsules included a Cl-anion and lidded with lanthanide cations were observed. © 2009 Elsevier B.V. All rights reserved.

Author-supplied keywords

  • Capped lanthanide cations
  • Cucurbit[5]urils
  • Encapsulated Cl anions
  • Molecular capsule

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Authors

  • Yun Qian Zhang

  • Jin Ping Zeng

  • Qian Jiang Zhu

  • Sai Feng Xue

  • Zhu Tao

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