Acid/base-controlled supramolecular switch

Owen A. Matthews; Françisco M. Raymo; J. Fraser Stoddart; Andrew J P White; David J. Williams

doi:10.1039/a804742a

Acid/base-controlled supramolecular switch

Owen A. Matthews^*, Françisco M. Raymo, J. Fraser Stoddart, Andrew J P White, David J. Williams

^*Corresponding author for this work

Chemistry

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

29 Scopus citations

Abstract

A rotaxane-like complex incorporating a hydroquinone-intercepted acyclic polyether chain terminated by tert-butylaniline rings and encircled by cyclobis(paraquat-p-phenylene) self-assembles spontaneously in acetonitrile solution from which it can be crystallized. Protonation of the nitrogen atoms of the guest is accompanied by the complete dissociation of the supramolecular complex into its free components. Addition of a base restores the original equilibrium affording back the rotaxane-like complex.

Original language	English (US)
Pages (from-to)	1131-1134
Number of pages	4
Journal	New Journal of Chemistry
Volume	22
Issue number	11
DOIs	https://doi.org/10.1039/a804742a
State	Published - Nov 1998

ASJC Scopus subject areas

Catalysis
General Chemistry
Materials Chemistry

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title = "Acid/base-controlled supramolecular switch",

abstract = "A rotaxane-like complex incorporating a hydroquinone-intercepted acyclic polyether chain terminated by tert-butylaniline rings and encircled by cyclobis(paraquat-p-phenylene) self-assembles spontaneously in acetonitrile solution from which it can be crystallized. Protonation of the nitrogen atoms of the guest is accompanied by the complete dissociation of the supramolecular complex into its free components. Addition of a base restores the original equilibrium affording back the rotaxane-like complex.",

author = "Matthews, {Owen A.} and Raymo, {Fran{\c c}isco M.} and Stoddart, {J. Fraser} and White, {Andrew J P} and Williams, {David J.}",

year = "1998",

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doi = "10.1039/a804742a",

language = "English (US)",

volume = "22",

pages = "1131--1134",

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AU - Matthews, Owen A.

AU - Raymo, Françisco M.

AU - Stoddart, J. Fraser

AU - White, Andrew J P

AU - Williams, David J.

PY - 1998/11

Y1 - 1998/11

N2 - A rotaxane-like complex incorporating a hydroquinone-intercepted acyclic polyether chain terminated by tert-butylaniline rings and encircled by cyclobis(paraquat-p-phenylene) self-assembles spontaneously in acetonitrile solution from which it can be crystallized. Protonation of the nitrogen atoms of the guest is accompanied by the complete dissociation of the supramolecular complex into its free components. Addition of a base restores the original equilibrium affording back the rotaxane-like complex.

AB - A rotaxane-like complex incorporating a hydroquinone-intercepted acyclic polyether chain terminated by tert-butylaniline rings and encircled by cyclobis(paraquat-p-phenylene) self-assembles spontaneously in acetonitrile solution from which it can be crystallized. Protonation of the nitrogen atoms of the guest is accompanied by the complete dissociation of the supramolecular complex into its free components. Addition of a base restores the original equilibrium affording back the rotaxane-like complex.

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JF - New Journal of Chemistry

IS - 11

ER -

Acid/base-controlled supramolecular switch

Abstract

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