The University of Southampton
University of Southampton Institutional Repository

Twists to the spin structure of the Ln9-diabolo motif exemplified in two {Zn2Ln2}[Ln9]{Zn2} coordination clusters

Twists to the spin structure of the Ln9-diabolo motif exemplified in two {Zn2Ln2}[Ln9]{Zn2} coordination clusters
Twists to the spin structure of the Ln9-diabolo motif exemplified in two {Zn2Ln2}[Ln9]{Zn2} coordination clusters
Two pentadecanuclear Zn4Ln11 [with Ln = Gd(1) or Dy(2)] coordination clusters, best formulated as {Zn2Ln2}[Ln9]{Zn2}, are presented. The central {Ln9} diabolo core has a {Zn2Ln2} handle motif pulling at two outer Ln ions of the central core via two {ZnLn} units, which also invest the system with C2 point symmetry. The resulting cluster motif is supported on two Zn “feet”, corresponding to the {Zn2} unit in the formula. A thorough investigation of the magnetic properties in the light of the properties of previously reported {Ln9} diabolo compounds was undertaken. Up to now, the spin structure of such diabolo motifs usually proves ambiguous. Our magnetic studies show that the orientation of the central spin in the {Gd9} diabolo plays a decisive role. In stabilizing the core by attachment of the {Zn}2+ “feet” and using the C2 symmetry related {ZnGd}5+ handles to influence the spin direction of the central Gd of the {Gd9} diabolo we can understand why the “naked” {Gd9} diabolo shows ambiguous spin structure. This then allowed us to elucidate the single molecule magnetic (SMM) properties of the Dy based compound 2 through disentangling the magnetic properties of the isostructural Gd based compound 1.
0020-1669
2483-2490
Griffiths, Kieran
91984c79-162c-4653-8521-60b3e76764f2
Kühne, Irina A.
abf1c88b-1a6f-494e-bbc2-2aed94aaad24
Tizzard, Graham J.
8474c0fa-40df-43a6-a662-7f3c4722dbf2
Coles, Simon J.
3116f58b-c30c-48cf-bdd5-397d1c1fecf8
Kostakis, George E.
dd72c724-c82e-4891-aa68-ccdb42cc6cb8
Powell, Annie K.
84c3aa9f-b469-489c-a4d7-264c4ec39e44
Griffiths, Kieran
91984c79-162c-4653-8521-60b3e76764f2
Kühne, Irina A.
abf1c88b-1a6f-494e-bbc2-2aed94aaad24
Tizzard, Graham J.
8474c0fa-40df-43a6-a662-7f3c4722dbf2
Coles, Simon J.
3116f58b-c30c-48cf-bdd5-397d1c1fecf8
Kostakis, George E.
dd72c724-c82e-4891-aa68-ccdb42cc6cb8
Powell, Annie K.
84c3aa9f-b469-489c-a4d7-264c4ec39e44

Griffiths, Kieran, Kühne, Irina A., Tizzard, Graham J., Coles, Simon J., Kostakis, George E. and Powell, Annie K. (2019) Twists to the spin structure of the Ln9-diabolo motif exemplified in two {Zn2Ln2}[Ln9]{Zn2} coordination clusters. Inorganic Chemistry, 58 (4), 2483-2490. (doi:10.1021/acs.inorgchem.8b03048).

Record type: Article

Abstract

Two pentadecanuclear Zn4Ln11 [with Ln = Gd(1) or Dy(2)] coordination clusters, best formulated as {Zn2Ln2}[Ln9]{Zn2}, are presented. The central {Ln9} diabolo core has a {Zn2Ln2} handle motif pulling at two outer Ln ions of the central core via two {ZnLn} units, which also invest the system with C2 point symmetry. The resulting cluster motif is supported on two Zn “feet”, corresponding to the {Zn2} unit in the formula. A thorough investigation of the magnetic properties in the light of the properties of previously reported {Ln9} diabolo compounds was undertaken. Up to now, the spin structure of such diabolo motifs usually proves ambiguous. Our magnetic studies show that the orientation of the central spin in the {Gd9} diabolo plays a decisive role. In stabilizing the core by attachment of the {Zn}2+ “feet” and using the C2 symmetry related {ZnGd}5+ handles to influence the spin direction of the central Gd of the {Gd9} diabolo we can understand why the “naked” {Gd9} diabolo shows ambiguous spin structure. This then allowed us to elucidate the single molecule magnetic (SMM) properties of the Dy based compound 2 through disentangling the magnetic properties of the isostructural Gd based compound 1.

Text
Zn4Ln11_ACS_template_accepted - Accepted Manuscript
Restricted to Repository staff only until 15 April 2020.
Request a copy

More information

Accepted/In Press date: 15 January 2019
e-pub ahead of print date: 31 January 2019
Published date: 18 February 2019

Identifiers

Local EPrints ID: 427554
URI: https://eprints.soton.ac.uk/id/eprint/427554
ISSN: 0020-1669
PURE UUID: 5aa59129-48a1-4bcf-9386-c93cd5b72cea
ORCID for Graham J. Tizzard: ORCID iD orcid.org/0000-0002-1577-5779
ORCID for Simon J. Coles: ORCID iD orcid.org/0000-0001-8414-9272

Catalogue record

Date deposited: 23 Jan 2019 17:30
Last modified: 20 Jul 2019 01:10

Export record

Altmetrics

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of https://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×