Monitoring the thermodynamically-controlled formation of diimide-based resin-attached rotaxanes by gel-phase HR MAS ¹H NMR Spectroscopy

Kathleen Mullen; Ken Johnstone; Matthew Webb; Nick Bampos; Jeremy K M Sanders; Maxwell John Gunter

doi:10.1039/b716325h

Monitoring the thermodynamically-controlled formation of diimide-based resin-attached rotaxanes by gel-phase HR MAS ¹H NMR Spectroscopy

Kathleen Mullen, Ken Johnstone, Matthew Webb, Nick Bampos, Jeremy K M Sanders, Maxwell John Gunter

Research output: Contribution to journal › Article › peer-review

22 Citations (Scopus)

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.

Original language	English
Pages (from-to)	278-286
Journal	Organic & Biomolecular Chemistry
Volume	6
Issue number	2
DOIs	https://doi.org/10.1039/b716325h
Publication status	Published - 2008

Keywords

Nanochemistry and Supramolecular Chemistry

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10.1039/b716325h

https://hdl.handle.net/1959.11/1351

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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.",

keywords = "Nanochemistry and Supramolecular Chemistry",

author = "Kathleen Mullen and Ken Johnstone and Matthew Webb and Nick Bampos and Sanders, \{Jeremy K M\} and Gunter, \{Maxwell John\}",

year = "2008",

doi = "10.1039/b716325h",

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journal = "Organic \& Biomolecular Chemistry",

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publisher = "Royal Society of Chemistry",

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T1 - Monitoring the thermodynamically-controlled formation of diimide-based resin-attached rotaxanes by gel-phase HR MAS ¹H NMR Spectroscopy

AU - Mullen, Kathleen

AU - Johnstone, Ken

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AU - Bampos, Nick

AU - Sanders, Jeremy K M

AU - Gunter, Maxwell John

PY - 2008

Y1 - 2008

N2 - 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.

AB - 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.

KW - Nanochemistry and Supramolecular Chemistry

UR - https://www.scopus.com/pages/publications/37849030234

U2 - 10.1039/b716325h

DO - 10.1039/b716325h

M3 - Article

SN - 1477-0520

VL - 6

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JO - Organic & Biomolecular Chemistry

JF - Organic & Biomolecular Chemistry

IS - 2

ER -

Monitoring the thermodynamically-controlled formation of diimide-based resin-attached rotaxanes by gel-phase HR MAS ¹H NMR Spectroscopy

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