A Supramolecular Aggregate of Four Exchange-Biased Single-Molecule Magnets
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https://figshare.com/articles/dataset/A_Supramolecular_Aggregate_of_Four_Exchange_Biased_Single_Molecule_Magnets/2567941
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资源简介：
The reaction between 3-phenyl-1,5-bis(pyridin-2-yl)pentane-1,5-dione
dioxime (pdpdH2) and triangular [MnIII3O(O2CMe)(py)3](ClO4) (1) affords [Mn12O4(O2CMe)12(pdpd)6)](ClO4)4 (3). Complex 3 has a rectangular shape and consists of
four [MnIII3O]7+ triangular units
linked covalently by the dioximate ligands into a supramolecular [Mn3]4 tetramer. Solid-state dc and ac magnetic susceptibility
measurements revealed that [Mn3]4 contains four
Mn3 single-molecule magnets (SMMs), each with an S = 6 ground state. Magnetization versus dc-field sweeps
on a single crystal gave hysteresis loops below 1 K that exhibited
exchange-biased quantum tunneling of magnetization steps, confirming 3 to be a supramolecular aggregate of four weakly exchange-coupled
SMM units.
创建时间：
2016-02-22
