A family of lanthanide complexes has been synthesized by the subcomponent self-assembly methodology. Molecular architectures, which were stable in solution and in ambient conditions, were designed by the in-situ formation of ligands around lanthanide ion templates. Magnetic studies indicated that, despite the low C2 symmetry, 1 and 2 display single molecule magnet (SMM) behavior, with 1 exhibiting an effective energy barrier of the relaxation of the magnetization Ueff / kB = 50 K and the relaxation time at infinite temperature to = 6.80 � 10-7s. Step-like features in the hysteresis loops indicate the presence of quantum tunneling of the magnetization (QTM). 

Subcomponent self-assembly of rare-earth single molecule magnets

246th National Meeting (2013)

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