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Bromine-bridged Dy2 single-molecule magnet: magnetic anisotropy driven by cis/trans stereoisomers.

Min LiHaipeng WuZhengqiang XiaVincent MontigaudOlivier CadorBoris Le GuennicHongshan KeWenyuan WangGang XieSanping Chen
Published in: Chemical communications (Cambridge, England) (2019)
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.
Keyphrases
  • single molecule
  • molecularly imprinted
  • atomic force microscopy
  • living cells
  • mass spectrometry