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3d−3d−4f Chain Complexes Constructed Using the Dinuclear Metallacyclic Complex [Ni<sub>2</sub>(mbpb)<sub>3</sub>]<sup>2−</sup> [H<sub>2</sub>mbpb = 1,3-Bis(pyridine-2-carboxamide)benzene] as a Ligand: Synthesis, Structures, and Magnetic Properties

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A series of one-dimensional Ni2Ln cationic complexes have been prepared by assembling the in situ generated dinuclear mesocate [Ni2(mbpb)3]2− building block [H2mbpb is the ligand 1,3-bis(pyridine-2-carboxamide)benzene] with Ln3+ metal ions (Ln3+ = Gd, Tb, Dy). The crystal-field potentials for the two types of site symmetries found for these 3d−3d−4f complexes (LnO7 and LnO8) are quite different, which has a direct influence on the depopulation of the Stark sublevels, the magnetic anisotropy, and the magnetic properties.

创建时间:
2016-02-25
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