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Title: Thermodynamically self-assembling porphyrin-stoppered rotaxanes
Contributor(s): Gunter, MJ (author); Bampos, N (author); Johnstone, KD (author); Sanders, JKM (author)
Publication Date: 2001
DOI: 10.1039/b006911f
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Abstract: A variety of porphyrin-stoppered rotaxanes has been assembled under conditions of thermodynamic reversibility by judicious choice of components and temperatures. An admixture of a thread unit comprising a central naphthodiimide with terminal pyridines (2a), a ring unit dinaphtho-38-crown-10 (1) and either ZnII (3a), RuII (CO) (3b) or RhIII I (3c) as stoppers was shown to form an equilibrating mixture of pseudorotaxanes and the porphyrin-stoppered rotaxanes. The intact rotaxane could be crystallised from solution and chromatographed at low temperatures; at higher temperatures only a mixture of the components separated on chromatography. 1H NMR revealed NOE correlations between all three components for the rotaxane, and exchange peaks for related free and complexed species.
Publication Type: Journal Article
Source of Publication: New Journal of Chemistry, v.25, p. 166-173
Publisher: Royal Society of Chemistry
Place of Publication: United Kingdom
ISSN: 1144-0546
Field of Research (FOR): 030302 Nanochemistry and Supramolecular Chemistry
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
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