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Title: Monitoring the thermodynamically-controlled formation of diimide-based resin-attached rotaxanes by gel-phase HR MAS ¹H NMR Spectroscopy
Contributor(s): Mullen, Kathleen (author); Johnstone, Ken (author); Webb, Matthew (author); Bampos, Nick (author); Sanders, Jeremy K M (author); Gunter, Maxwell John (author)
Publication Date: 2008
DOI: 10.1039/b716325h
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Abstract: The thermodynamically controlled self-assembly of rotaxane and pseudorotaxane systems consisting of (i) a naphthodiimide thread unit terminated at one end with a pyridine ligand, and covalently linked at the other to a gel-phase polystyrene resin support, (ii) a dinaphtho-crown ether shuttle unit, and (iii) a ruthenium carbonyl metalloporphyrin stopper unit, is investigated by high resolution magic angle spinning proton (HR MAS ¹H)NMR spectroscopy. The effects of variable concentration of the solution-phase components, the tempurature, and added Li⁺ and Na⁺ ions are described, and the limitations of the technique are addressed. The dynamic behaviour is compared directly to the solution-phase analogues, where a bulky stopper group is substituted for the polystyrene resin bead.
Publication Type: Journal Article
Source of Publication: Organic & Biomolecular Chemistry, 6(2), p. 278-286
Publisher: Royal Society of Chemistry
Place of Publication: UK
ISSN: 1477-0520
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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