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Shape-persistent macrocycles: efficient extraction towards lanthanide and actinide elements

  • Lijian Zhong
  • Long Chen
  • Wen Feng
  • Shuliang Zou
  • Yuanyou Yang
  • Ning Liu
  • Lihua Yuan
Original Article

Abstract

The extraction of three shape-persistent aromatic oligoamide macrocycles (cycloaramides) bearing either apolar or polar side chains at the periphery of the rings has been investigated towards some representative lanthanide and actinide ions, and alkali metal ions. The results from the liquid–liquid extraction of lanthanide and thorium ions from aqueous solutions into dichloromethane revealed remarkably high extractability of up to 99% and selectivity over alkali metal cations. The stoichiometry of the complex formed between the macrocycle and Eu3+ or Th4+ was determined to be 1:1.

Keywords

Cycloaramide Macrocycle Hydrogen bonding Lanthanide Actinide Extraction 

Notes

Acknowledgments

This work is supported by the National Natural Science Foundation (20774059, 20672078) and the Doctoral Program of the Ministry of Education of China (20090181110047). Analytical & Testing Center of Sichuan University is acknowledged for technical assistance of NMR experiments.

Supplementary material

10847_2011_9991_MOESM1_ESM.doc (919 kb)
Supplementary material 1 (DOC 919 kb)

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Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  • Lijian Zhong
    • 1
  • Long Chen
    • 1
  • Wen Feng
    • 1
  • Shuliang Zou
    • 1
  • Yuanyou Yang
    • 1
  • Ning Liu
    • 1
  • Lihua Yuan
    • 1
  1. 1.College of Chemistry, Key Laboratory for Radiation Physics and Technology of Ministry of EducationInstitute of Nuclear Science and Technology, Sichuan UniversityChengduChina

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