Guest and subunit exchange in self-assembled ionophores.

نویسندگان

  • M Cai
  • V Sidorov
  • Y F Lam
  • R A Flowers
  • J T Davis
چکیده

[reaction: see text] Self-assembled ionophores, formed by hydrogen bonding of isoG 1 around a cation, are dynamic structures. Multinuclear NMR spectroscopy in CD(3)CN-CDCl(3) showed that cation exchange is >10(4) faster than exchange of isoG 1 ligand in (isoG 1)(10)-Cs(+) Ph(4)B(-). The cationic guest also affected the kinetic stability of the complex. 2D-EXSY NMR experiments in CDCl(3) showed that ligand exchange was 2 orders of magnitude faster for the Li(+)-decamer than for the Cs(+)-decamer.

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عنوان ژورنال:
  • Organic letters

دوره 2 12  شماره 

صفحات  -

تاریخ انتشار 2000