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

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

C J Kuehl  1 , S D Huang, P J Stang
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Self-assembly with postmodification: kinetically stabilized metalla-supramolecular rectangles

C J Kuehl et al. J Am Chem Soc. .

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.

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