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Decorating beads with paramagnetic rings: synthesis of inorganic-organic [10^14]rotaxanes as shown by spin counting

08 February 2022, Version 2

Abstract

Polymer beads have been used as the core of magnetic particles for around twenty years. Here we report studies to attach polymetallic complexes to polymer beads for the first time, producing beads of around 115 microns that are attached to 10^14 hybrid inorganic-organic [2]rotaxanes. The bead is then formally a [10^14] rotaxane. The number of complexes attached is counted by including TEMPO radicals within the thread of the hybrid [2]rotaxanes, and then performing spin-counting using EPR spectroscopy.

Keywords

EPR
Rotaxane
Polymer Beads
Spectroscopy
Polymetallic
10^14
TEMPO
Magnetism
Hybrid Inorganic-Organic

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Now Published

Decorating polymer beads with 1014 inorganic-organic [2]rotaxanes as shown by spin counting [opens in a new tab]
Deepak Asthana, Dean Thomas, Selena J. Lockyer, Adam Brookfield, Grigore A. Timco, Iñigo J. Vitorica-Yrezabal, George F. S. Whitehead, Eric J. L. McInnes, David Collison, David A. Leigh, Richard E. P. Winpenny journal article
Communications Chemistry , Volume 5, Issue 1
Online publication date: Jun 20, 2022

Version History

Feb 08, 2022 Version 2

Version Notes

Finalised text, figures and SI

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The content is available under CC BY NC ND 4.0 [opens in a new tab]

DOI

10.26434/chemrxiv-2022-w6g7w-v2
D O I: 10.26434/chemrxiv-2022-w6g7w-v2 [opens in a new tab]

Funding

Engineering and Physical Sciences Research Council
EP/R043701/1
Engineering and Physical Sciences Research Council
EP/R011079/1
European Research Council
ADG 786734
Engineering and Physical Sciences Research Council
EP/P027067/1
European Research Council
ADG 786630
Engineering and Physical Sciences Research Council
EP/K039547/1

Author’s competing interest statement

The author(s) have declared they have no conflict of interest with regard to this content

Ethics

The author(s) have declared ethics committee/IRB approval is not relevant to this content

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