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Heptanuclear disk-like MII3LnIII4 (M=Ni, Co) coordination clusters: synthesis, structures and magnetic properties

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posted on 2023-06-09, 07:23 authored by Kieran Griffiths, Chris Harding, Vasiliki N Dokorou, Edouardos Loukopoulos, Stavroula Sampani, Alaa Abdul-Sada, Graham J Tizzard, Simon J Coles, Giulia Lorusso, Marco Evangelisti, Albert Escuer, George KostakisGeorge Kostakis
The synthesis, characterization, crystal structures and magnetic properties of isoskeletal heptanuclear disk-like MII 3LnIII 4 coordination clusters with the general formula [CoII 3LnIII 4(µ3- OH)6L6(CF3SO3)](CF3SO3)5] where Ln= Gd (2), Y (3) and [NiII 3LnIII 4(µ3- OH)6L6(CF3SO3)](CF3SO3)5] where Ln= Dy (4), Gd (5), Y (6) are presented. All the compounds are stable in solution as confirmed by ESI-MS. Magnetic studies were performed for compounds 2, 4, 5 and 6 and indicate ferromagnetic coupling while the magnetocaloric properties of 5 are characterized by ?Sm = -15.4 Jkg-1K -1 at T = 5.0 K and ?Tad = 5.9 K at T = 2.3 K, for µ0?H = 7 T.

History

Publication status

  • Published

File Version

  • Accepted version

Journal

European Journal of Inorganic Chemistry

ISSN

1434-1948

Publisher

Wiley

Issue

33

Volume

2017

Page range

3938-3945

Department affiliated with

  • Chemistry Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2017-07-25

First Open Access (FOA) Date

2018-09-07

First Compliant Deposit (FCD) Date

2017-07-25

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