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Rational Organization of Lanthanide-Based SMM Dimers into Three-Dimensional Networks

Abstract : Optimization of the reaction of [Ln(hfac)3]·2H2O and pyridine-N-oxide (PyNO), which is known to afford double-bridged dimers, leads to triple-bridged dimers of formula [(Ln(hfac)3)2(PyNO)3] (Ln = Gd (1), Dy (2)) from which the Dy derivative (2) behaves as a single-molecule magnet (SMM). The pseudo threefold axis symmetry of this zero-dimensional building block makes possible its extension into a tridimensional network. By changing PyNO for 4,4'-bipyridine N,N'-dioxide (4,4'BipyNO) a tridimensional compound of formula \[Ln(hfac)3]2(4,4'BipyNO)2]\ (Ln = Eu (3), Gd (4), and Dy (5)) is then rationally obtained. This covalent three-dimensional (3D) network has a remarkably high cell volume (V = 24 419 A(3)) and is an arrangement of interpenetrated 3D subnetworks whose triple-bridged dimers still behave as SMMs.[on SciFinder (R)]
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https://hal-univ-rennes1.archives-ouvertes.fr/hal-01153425
Contributor : Laurent Jonchère <>
Submitted on : Tuesday, May 19, 2015 - 5:25:50 PM
Last modification on : Tuesday, December 3, 2019 - 5:29:56 PM

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Xiaohui Yi, Guillaume Calvez, Carole Daiguebonne, Olivier Guillou, Kevin Bernot. Rational Organization of Lanthanide-Based SMM Dimers into Three-Dimensional Networks. Inorganic Chemistry, American Chemical Society, 2015, 54 (11), pp.5213-5219. ⟨10.1021/acs.inorgchem.5b00087⟩. ⟨hal-01153425⟩

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