Journal
INORGANIC CHEMISTRY
Volume 57, Issue 21, Pages 13409-13414Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.8b01981
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Funding
- National Key R&D Program of China [2018YFA0306002]
- National Natural Science Foundation of China [21622105, 21331003]
- Fundamental Research Funds for the Central Universities
- Ministry of Education of China [B12015]
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By the reaction of an enantiopure nitronyl nitroxide radical, 2-((1R)-(-)-myrtenal)-4,4,5,5-tetramethylimidazolin-1-oxy1-3-oxide), abbreviated as (1R)-(-)-myrtenal-NIT, and Dy(hfac)(3)center dot 2H(2)O (hfac = hexafluoroacetylacetonate), we successfully obtained a homochiral Dy-III-radical chain compound [Dy(hfac)(3)(1R)-(-)-myrtenal-NIT](n) (1) with full characterization. 1 crystallizes in the chiral P2(1) space group and exhibits slow magnetization relaxation, holding an effective energy barrier (Delta(tau)/k(B)) of 64.6 K (44.9 cm(-1)) and an attempt time tau(0) of 1.0 x 10(-7) s. The correlation energy (Delta(xi)/k(B)) of this chain is 10.4 K (7.2 cm(-1)), and the effective Curie constant is 2.8 cm(3).K.mol(-1). Additionally, 1 exhibits temperature-dependent hysteresis loops below 4 K, with a maximum coercive field of 0.51 The at 2 K.
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