Molecular Borromean rings

Kelly S. Chichak, Stuart J. Cantrill, Anthony R. Pease, Sheng Hsien Chiu, Gareth W V Cave, Jerry L. Atwood, J. Fraser Stoddart*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

596 Scopus citations

Abstract

The realization of the Borromean link in a wholly synthetic molecular form is reported. The self-assembly of this link, which is topologically achiral, from 18 components by the template-directed formation of 12 imine and 30 dative bonds, associated with the coordination of three interlocked macrocycles, each tetranucleating and decadentate overall, to a total of six zinc(II) ions, is near quantitative. Three macrocycles present diagonally in pairs, six exo-bidentate bipyridyl and six endo-diiminopyridyl ligands to the six zinc(II) ions. The use, in concert, of coordination, supramolecular, and dynamic covalent chemistry allowed the highly efficient construction, by multiple cooperative self-assembly processes, of a nanoscale dodecacation with an approximate diameter of 2.5 nanometers and an inner chamber of volume 250 Å3, lined with 12 oxygen atoms.

Original languageEnglish (US)
Pages (from-to)1308-1312
Number of pages5
JournalScience
Volume304
Issue number5675
DOIs
StatePublished - May 28 2004

ASJC Scopus subject areas

  • General

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