Effective Energy Barrier Improvement Via Hydroxyl-Bridge in Linear {dy2iiizn2ii} Clusters

Yan Li, Hui-Yun Zhang, Xiao-Meng Yang, Zu-Yu Wang, Yi-Xin Xu,Pu Zhao,Ya You,Rui-Peng Dai,En-Cui Yang,Xiao-Jun Zhao

Inorganic Chemistry Communications（2022）

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摘要

Two heterometallic tetranuclear {Dy2Zn2} clusters were hydrothermally prepared by the reactions of same mixed-ligands with different dysprosium sources. Substituting two carboxylate-groups of the former complex with a couple of hydroxide-bridges generated a smaller shortest Dy−O bond and the larger bond length difference, leading to more uniaxial anisotropy of DyIII spins resulting from the strong coordination ability of OH– groups, thus exhibiting better dynamics behaviour.

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关键词

3d-4f SMMs,Single-molecule magnets,Effective energy barrier,Dynamic magnetic behaviour

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