Self-assembly with postmodification: kinetically stabilized metalla-supramolecular rectangles

J Am Chem Soc. 2001 Oct 3;123(39):9634-41. doi: 10.1021/ja0114355.

Abstract

Interaction of a predesigned molecular "clip" (4) with rigid dipyridyl bridging ligands, in acetone/water mixtures, leads to the formation of molecular rectangles (5-8) in 92-97% isolated yields via spontaneous self-assembly. Characterization was accomplished with multinuclear NMR and UV-vis spectroscopy, FAB mass spectrometry, and X-ray crystallography. The length of these metallamacrocycles ranges from 2 to 3 nm. Postmodification via non-nucleophilic counterion exchange results in enhanced structural integrity for the assemblies.

Publication types

  • Research Support, U.S. Gov't, Non-P.H.S.
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • 2,2'-Dipyridyl / analogs & derivatives*
  • 2,2'-Dipyridyl / chemistry*
  • Anthracenes / chemistry*
  • Kinetics
  • Models, Molecular
  • Platinum Compounds / chemistry

Substances

  • Anthracenes
  • Platinum Compounds
  • 2,2'-Dipyridyl