Silver Ion Shuttling in the Trimer-Mimic Thiacalix[4]crown Tube

Sung Kuk Kim, Jae Kwang Lee, Seoung Ho Lee, Mi S. Lim, Soon W. Lee, Wonbo Sim, Jong Seung Kim

Research output: Contribution to journalArticlepeer-review

54 Citations (Scopus)


Novel 1,3-alternate calix-thiacalix[4] crown trimers bearing crown-5 and crown-6 were prepared. As proven by X-ray diffraction, in a 1:2 mole ratio of ligand to metal ion, the Cs+ and K+ ions prefer to be encapsulated in the trimeric thiacalix[4]crown-6 and crown-5, respectively. On the contrary, the Ag+ ion was found to be entrapped in the central thiacalix spacer as a 1:1 complex confirmed by 1H NMR spectrosocpy. Variable-temperature 1H NMR studies for the trimeric thiacalix[4]crown-6 encapsulating the silver ion revealed that the Ag + ion oscillates through the central thiacalix spacer with the aid of cation-π interactions.

Original languageEnglish
Pages (from-to)2877-2880
Number of pages4
JournalJournal of Organic Chemistry
Issue number8
Publication statusPublished - 2004 Apr 16
Externally publishedYes

ASJC Scopus subject areas

  • Organic Chemistry


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