Linking high anisotropy Dy3 triangles to create a Dy6 single-molecule magnet

Abstract

A unique Dy(III)(6) complex is created by linking of two Dy(III)(3) triangles, in which intramolecular ferromagnetic interactions and single-molecule magnetic behaviour have been observed.

Di(2‐pyridyl) Ketone Complexes of CuI‐ and CuII‐Containing Iodide and Thiocyanate Ligands: An Unusual Case of a Mixed‐Aldol Condensation

“…Hence, we suggest it is the unreacted thiocyanate behaving as a weak base that is the most likely candidate to initiate the formation of the enolate. Hussain [13] and Perlepes [8] have used strong base to initiate the formation of enolates, but in the present work, we have observed similar results with much weaker bases.…”

“…This condensation reaction has been reported recently by Hussain et al [13] who found that a new aldol ligand was generated when o-vanillin reacted in the presence of Dy(III), potassium hydroxide and acetone.…”

“…Recently, similar to Hussain, where acetone was able to form a nucleophilic enolate, [13] Perlepes observed a Ni II -promoted mixed-aldol condensation with dpk in the presence of a strong base, potassium hydroxide, to form the novel ligand observed here in compound 3. However, there has not been a detailed study reported of this work.…”

Recent Progress in the Realm of Homonuclear Ln6 Single molecule magnets: Structural Overview and Synthetic Approaches

“…Murugesu et al, as early as 2009, reported the first such example of a unique Dy III 6 complex formed by the coupling of two similar Dy III 3 triangles, in which intramolecular ferromagnetic interactions and singlemolecule magnetic behaviour was witnessed (Hussain et al, 2009). In an effort to create new-generation smarter lanthanide SMMs with large anisotropic barriers and also to grasp the inimitable properties of such systems, Ln 3 complexes were employed as building blocks to create larger SMMs by using the simple synthetic approach (Milios et al, 2006).…”

“…Notwithstanding the enormous inherent interest in SMMs, it was also understood that they could, in principle be developed for new technological applications following a strategy-based rational approach (Hussain et al, 2009;Hewitt et al, 2009;Long et al, 2011;Chen et al, 2011;Guo et al, 2011;Lin et al, 2012;Xue et al, 2012;Tian et al, 2012;Anwar et al, 2012;Habib et al, 2012). Entirely novel applications of SMMs have recently been envisaged, including the advancement in the field of molecular spintronics (Leuenberger et al, 2001;Coronado et al, 2004;Ardavan et al, 2007;Bouchiat et al, 2008;Bogani et al, 2008;Mannini et al, 2010;Urdampilleta et al, 2011;Katoh et al, 2012).…”