Bromine-bridged Dy2 single-molecule magnet: magnetic anisotropy driven by cis/trans stereoisomers
Chemical Communications2019Vol. 55(97), pp. 14661–14664
Citations Over TimeTop 17% of 2019 papers
Min Li, Haipeng Wu, Zhengqiang Xia, Vincent Montigaud, Olivier Cador, Boris Le Guennic, Hongshan Ke, Wenyuan Wang, Gang Xie, Sanping Chen
Abstract
We report the first bromine-bridged dinuclear [Dy(Cy3PO)2(μ-Br)(Br)2]2·2C7H8 single-molecule magnet with an effective energy barrier of 684 K and magnetic hysteresis below 3 K. The asymmetric DyIII centres present two unique stereoisomeric octahedral coordination environments depending on the cis/trans disposition of the Cy3PO ligands, leading to the orthogonality of the easy magnetic axes that annihilates the dipolar interactions.
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