Anion sensing by solution- and surface-assembled osmium(II) bipyridyl rotaxanes

Joshua Lehr; Thomas Lang; Octavia A. Blackburn; Stephen Faulkner; Jason J. Davis; Paul D. Beer; Timothy Barendt

doi:10.1002/chem.201302886

Anion sensing by solution- and surface-assembled osmium(II) bipyridyl rotaxanes

Joshua Lehr, Thomas Lang, Octavia A. Blackburn, Stephen Faulkner, Jason J. Davis^*, Paul D. Beer, Timothy Barendt

^*Corresponding author for this work

Chemistry

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

36 Citations (Scopus)

Abstract

We report the preparation of [2]rotaxanes containing an electrochemically and optically active osmium(II) bipyridyl macrocyclic component mechanically bonded with cationic pyridinium axles. Such interlocked host systems are demonstrated to recognise and sense anionic guest species as shown by ¹HNMR, luminescence and electrochemical studies. The rotaxanes can be surface assembled on to gold electrodes through anion templation under click copper(I)-catalysed Huisgen cycloaddition conditions to form rotaxane molecular films, which, after template removal, respond electrochemically and selectively to chloride.

Original language	English
Pages (from-to)	15898-15906
Number of pages	9
Journal	Chemistry - A European Journal
Volume	19
Issue number	47
DOIs	https://doi.org/10.1002/chem.201302886
Publication status	Published - 18 Nov 2013

Keywords

anion sensing
osmium
rotaxanes
self-assembly
surface immobilization

ASJC Scopus subject areas

Catalysis
Organic Chemistry

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10.1002/chem.201302886

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title = "Anion sensing by solution- and surface-assembled osmium(II) bipyridyl rotaxanes",

abstract = "We report the preparation of [2]rotaxanes containing an electrochemically and optically active osmium(II) bipyridyl macrocyclic component mechanically bonded with cationic pyridinium axles. Such interlocked host systems are demonstrated to recognise and sense anionic guest species as shown by 1HNMR, luminescence and electrochemical studies. The rotaxanes can be surface assembled on to gold electrodes through anion templation under click copper(I)-catalysed Huisgen cycloaddition conditions to form rotaxane molecular films, which, after template removal, respond electrochemically and selectively to chloride.",

keywords = "anion sensing, osmium, rotaxanes, self-assembly, surface immobilization",

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AU - Lehr, Joshua

AU - Lang, Thomas

AU - Blackburn, Octavia A.

AU - Faulkner, Stephen

AU - Davis, Jason J.

AU - Beer, Paul D.

AU - Barendt, Timothy

PY - 2013/11/18

Y1 - 2013/11/18

N2 - We report the preparation of [2]rotaxanes containing an electrochemically and optically active osmium(II) bipyridyl macrocyclic component mechanically bonded with cationic pyridinium axles. Such interlocked host systems are demonstrated to recognise and sense anionic guest species as shown by 1HNMR, luminescence and electrochemical studies. The rotaxanes can be surface assembled on to gold electrodes through anion templation under click copper(I)-catalysed Huisgen cycloaddition conditions to form rotaxane molecular films, which, after template removal, respond electrochemically and selectively to chloride.

AB - We report the preparation of [2]rotaxanes containing an electrochemically and optically active osmium(II) bipyridyl macrocyclic component mechanically bonded with cationic pyridinium axles. Such interlocked host systems are demonstrated to recognise and sense anionic guest species as shown by 1HNMR, luminescence and electrochemical studies. The rotaxanes can be surface assembled on to gold electrodes through anion templation under click copper(I)-catalysed Huisgen cycloaddition conditions to form rotaxane molecular films, which, after template removal, respond electrochemically and selectively to chloride.

KW - anion sensing

KW - osmium

KW - rotaxanes

KW - self-assembly

KW - surface immobilization

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DO - 10.1002/chem.201302886

M3 - Article

AN - SCOPUS:84896545112

SN - 0947-6539

VL - 19

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EP - 15906

JO - Chemistry - A European Journal

JF - Chemistry - A European Journal

IS - 47

ER -

Anion sensing by solution- and surface-assembled osmium(II) bipyridyl rotaxanes

Abstract

Keywords

ASJC Scopus subject areas

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