Slow Relaxation of the Magnetization in Bis-Decorated Chiral Helicene-Based Coordination Complexes of Lanthanides

Abstract : The complexes [Ln(2)(hfac)(6)(L)](.)nC(6)H(14) (Ln = Dy (1) n = 0, Yb (2) n = 1) with the L chiral 3,14-di-(2-pyridyl)-4,13-diaza[6]helicene ligand (hfac(- )= 1,1,1,5,5,5-hexafluoroacetylacetonate) have been synthesized in their racemic form and structurally and magnetically characterized. Both complexes behave as field-induced single molecule magnets in the crystalline phase. These magnetic properties were rationalized by ab initio calculations.
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Jessica Flores Gonzalez, Vincent Montigaud, Nidal Saleh, Olivier Cador, Jeanne Crassous, et al.. Slow Relaxation of the Magnetization in Bis-Decorated Chiral Helicene-Based Coordination Complexes of Lanthanides. Magnetochemistry, MDPI, 2018, 4 (3), ⟨10.3390/magnetochemistry4030039⟩. ⟨hal-01902028⟩

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