4.7 Article

Organophosphonate-Bridged Polyoxometalate-Based Dysprosium(III) Single-Molecule Magnet

Journal

INORGANIC CHEMISTRY
Volume 56, Issue 21, Pages 12687-12691

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.7b02251

Keywords

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Funding

  1. NSFC [21620102002, 91422302, 21371048, 91222102, 21573056]
  2. NSF from Henan Province [134300510035, 162300410015]

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A novel dysprosium(III)-containing olytungstoarsenate, [{As-W9O33)(3)Dy-2(H2O)(4)W4O9(H2O)}(2)(NH2(CH2PO3)(2))](33-), comprising two identical subunits bridged by an organophosphonate ligand shows single-molecule-magnet (SMM) behavior. Magnetic studies reveal that this complex exhibits a butterfly-shaped hysteresis loop up to 8 K, and a thermally activated energy barrier of 101(5) K reached a breakthrough among all polyoxometalate-supported SMMs.

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