Thallium pi-cation complexation by calix[4]tubes: Tl-205 NMR and X-ray evidence

Susan E. Matthews, Nicholas H. Rees, Vitor Felix, Michael G. B. Drew, Paul D. Beer

Research output: Contribution to journalArticlepeer-review

44 Citations (Scopus)

Abstract

Thallium cation complexation by calix[4]tubes has been investigated by a combination of (TI)-T-205, H-1 NMR and ES MS demonstrating the solution formation of a dithallium complex in which the cations are held in the calix[4]arene cavities. In addition, the structure of the complex has been determined in the solid state revealing the cations to be held exclusively by pi-cation interactions. Furthermore, this crystal structure has been used as the basis for molecular dynamics simulations to confirm that binding of the smaller K+ cation in the calix[4]tube cryptand like array occurs via the axial route featuring a g-cation intermediate.
Original languageEnglish
Pages (from-to)729-734
Number of pages6
JournalInorganic Chemistry
Volume42
Issue number3
DOIs
Publication statusPublished - 2003

Keywords

  • ETHERS
  • CALIX<4>ARENES
  • ION
  • SILVER
  • CALIXARENES
  • SELECTIVITY
  • COORDINATION
  • ALKALI
  • CESIUM
  • NON-AQUEOUS SOLUTIONS

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