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Journal articles
Lanthanide(III) Hexanuclear Circular Helicates: Slow Magnetic Relaxation, Toroidal Arrangement of Magnetic Moments, and Magnetocaloric Effects
Abstract : Four hexanuclear circular helicates, {[DyL(DMF)]·6CFSO·12DMF} (), {[GdL(DMF)]·6CFSO·12DMF} (), [DyL(DMF)(HO)]·6ClO·4HO·10DMF (), and [GdL(DMF)]·6ClO·2HO·10DMF (), where DMF = ,-dimethylformamide, were synthesized by employing a glutaratedihydrazide-bridged bis(3-methoxysalicylaldehyde) ligand (HL) and characterized structurally and magnetically. Direct-current magnetic susceptibility studies indicated predominant weak antiferromagnetic exchange interactions among gadolinium analogues, which were quantified using the software, giving = -0.003 cm with = 2.00 for and = -0.001 cm with = 2.02 for . Alternating-current magnetic susceptibility measurements indicated that complexes and show slow relaxation of magnetization behavior, further supported by theoretical calculations that also highlighted the toroidal arrangement of the magnetic moments.
Cited literature [51 references]
https://hal-univ-rennes1.archives-ouvertes.fr/hal-02179644
Contributor : Laurent Jonchère <>
Submitted on : Monday, September 16, 2019 - 5:00:48 PM
Last modification on : Friday, January 24, 2020 - 1:19:56 AM
Long-term archiving on: : Saturday, February 8, 2020 - 7:39:03 PM
Contributor : Laurent Jonchère <>
Submitted on : Monday, September 16, 2019 - 5:00:48 PM
Last modification on : Friday, January 24, 2020 - 1:19:56 AM
Long-term archiving on: : Saturday, February 8, 2020 - 7:39:03 PM
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