Field-Induced Dysprosium Single-Molecule Magnet Involving a Fused o-Semiquinone-Extended-Tetrathiafulvalene-o-Semiquinone Bridging Triad

Abstract : The reaction between the 2,2-benzene-1,4-diylbis(6-hydroxy-4,7-di-tert-butyl-1,3-benzodithiol-2-ylium-5-olate biradical triad (L) and the metallo-precursor [Dy(hfac)(3)]2H(2)O leads to the formation of a one-dimensional coordination polymer with the formula {[Dy(hfac)(3)(L)]2C(6)H(14)}(n) (1). The X-ray structure reveals that the polymeric structure is formed by the bridging of the Dy(hfac)(3) units with the multi-redox triad L. Single-crystal X-ray diffraction and UltraViolet-visible absorption spectroscopy confirm that the triad L in 1 is bound as a direduced, diprotonated form of o-quinone-extended tetrathiafulvalene-o-quinone (Q-exTTF-Q). Alternate Current (AC) measurements highlight a field-induced single-molecule magnet (SMM) behavior with an energy barrier of 20 K, and thus 1 can be described as a one-dimensional assembly of mononuclear SMMs bridged by the L triad.
Document type :
Journal articles
Complete list of metadatas

Cited literature [44 references]  Display  Hide  Download

https://hal-univ-rennes1.archives-ouvertes.fr/hal-01861426
Contributor : Laurent Jonchère <>
Submitted on : Tuesday, July 16, 2019 - 3:11:03 PM
Last modification on : Wednesday, July 17, 2019 - 1:27:12 AM

File

inorganics-06-00045-v2.pdf
Publisher files allowed on an open archive

Identifiers

Citation

Jessica Flores Gonzalez, Olivier Cador, Lahcène Ouahab, Sergey Norkov, Viacheslav Kuropatov, et al.. Field-Induced Dysprosium Single-Molecule Magnet Involving a Fused o-Semiquinone-Extended-Tetrathiafulvalene-o-Semiquinone Bridging Triad. Inorganics, MDPI AG, 2018, 6 (2), ⟨10.3390/inorganics6020045⟩. ⟨hal-01861426⟩

Share

Metrics

Record views

52

Files downloads

36