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Tailored homo- and hetero- lanthanide porphyrin dimers: a synthetic strategy for integrating multiple spintronic functionalities into a single molecule

Tailored homo- and hetero- lanthanide porphyrin dimers: a synthetic strategy for integrating multiple spintronic functionalities into a single molecule
Tailored homo- and hetero- lanthanide porphyrin dimers: a synthetic strategy for integrating multiple spintronic functionalities into a single molecule
We present the design, synthesis and magnetic properties of molecular magnetic systems that contain all elements necessary for spin-valve control in molecular spintronic devices in a single molecule. We investigate the static and dynamic magnetic properties and quantum spin properties of butadiyne-linked homo- and hetero-nuclear lanthanide-porphyrin dimers. A heterometallated porphyrin dimer containing both TbIII and DyIII centres is created rationally by the stepwise oxidative homocoupling of distinct lanthanide-porphyrin monomers. TbIII and DyIII mononuclear porphyrin complexes, homodimers and heterodimers all exhibit slow magnetic relaxation below 10 kelvin under a static magnetic field. The coherence times for GdIII porphyrin monomers and dimers are found to be in excess of 3.0 μs at 2 K, allowing distinct magnetic manipulations in low temperature transport experiments.
1478-6524
8474-8481
Le Roy, Jennifer J.
63663155-5e55-41c4-8fa4-d1c67210851a
Cremers, Jonathan
007802f1-5eb5-4206-a632-48cb248a1bc1
Thomlinson, Isabel A.
011b9344-96d2-4baa-9158-dee5bc800b8d
Slota, Michael
fe45f665-b571-4d3a-8d99-09cc762c5609
Horton, Peter
154c8930-bfc3-495b-ad4a-8a278d5da3a5
Coles, Simon J.
3116f58b-c30c-48cf-bdd5-397d1c1fecf8
Anderson, Harry L.
30cdcaf7-e460-409f-b9c3-96ded4744081
Bogani, Lapo
710c3baf-bd32-4fba-be4e-99ec5c0fe343
Le Roy, Jennifer J.
63663155-5e55-41c4-8fa4-d1c67210851a
Cremers, Jonathan
007802f1-5eb5-4206-a632-48cb248a1bc1
Thomlinson, Isabel A.
011b9344-96d2-4baa-9158-dee5bc800b8d
Slota, Michael
fe45f665-b571-4d3a-8d99-09cc762c5609
Horton, Peter
154c8930-bfc3-495b-ad4a-8a278d5da3a5
Coles, Simon J.
3116f58b-c30c-48cf-bdd5-397d1c1fecf8
Anderson, Harry L.
30cdcaf7-e460-409f-b9c3-96ded4744081
Bogani, Lapo
710c3baf-bd32-4fba-be4e-99ec5c0fe343

Le Roy, Jennifer J., Cremers, Jonathan, Thomlinson, Isabel A., Slota, Michael, Horton, Peter, Coles, Simon J., Anderson, Harry L. and Bogani, Lapo (2018) Tailored homo- and hetero- lanthanide porphyrin dimers: a synthetic strategy for integrating multiple spintronic functionalities into a single molecule. Chemical Science, 9 (45), 8474-8481. (doi:10.1039/c8sc03762k).

Record type: Article

Abstract

We present the design, synthesis and magnetic properties of molecular magnetic systems that contain all elements necessary for spin-valve control in molecular spintronic devices in a single molecule. We investigate the static and dynamic magnetic properties and quantum spin properties of butadiyne-linked homo- and hetero-nuclear lanthanide-porphyrin dimers. A heterometallated porphyrin dimer containing both TbIII and DyIII centres is created rationally by the stepwise oxidative homocoupling of distinct lanthanide-porphyrin monomers. TbIII and DyIII mononuclear porphyrin complexes, homodimers and heterodimers all exhibit slow magnetic relaxation below 10 kelvin under a static magnetic field. The coherence times for GdIII porphyrin monomers and dimers are found to be in excess of 3.0 μs at 2 K, allowing distinct magnetic manipulations in low temperature transport experiments.

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Accepted/In Press date: 17 October 2018
e-pub ahead of print date: 19 October 2018

Identifiers

Local EPrints ID: 426334
URI: http://eprints.soton.ac.uk/id/eprint/426334
ISSN: 1478-6524
PURE UUID: 03c5561b-0a84-4557-ad85-56896a7282f3
ORCID for Peter Horton: ORCID iD orcid.org/0000-0001-8886-2016
ORCID for Simon J. Coles: ORCID iD orcid.org/0000-0001-8414-9272

Catalogue record

Date deposited: 23 Nov 2018 17:30
Last modified: 22 Nov 2021 02:45

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Contributors

Author: Jennifer J. Le Roy
Author: Jonathan Cremers
Author: Isabel A. Thomlinson
Author: Michael Slota
Author: Peter Horton ORCID iD
Author: Simon J. Coles ORCID iD
Author: Harry L. Anderson
Author: Lapo Bogani

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