Syntheses, Structures, and Magnetic Properties of Symmetric and Dissymmetric Ester‐Functionalized 3d‐4f Schiff Base Complexes. Issue 1 (5th January 2018)

• Record Type: Journal Article
• Authors: Béreau, Virginie; Dhers, Sébastien; Costes, Jean‐Pierre; Duhayon, Carine; Sutter, Jean‐Pascal
• Is Part Of: European journal of inorganic chemistry. Issue 1(2018)
• Page Start: 66
• Page End: 73
• Publication Date: 2018-01-05
• Subjects: Schiff base ligands -- Heterometallic complexes -- Rare earths -- Magnetic properties; Chemistry, Inorganic -- Periodicals; Organometallic chemistry -- Periodicals; Bioinorganic chemistry -- Periodicals; Solid state chemistry -- Periodicals; 546
• DOI: 10.1002/ejic.201701129
• Languages: English
• ISSNs: 1434-1948

Abstract

Abstract : Ester‐functionalized bicompartmental Schiff base ligands and their 3d‐Ln complexes (3d = Ni II, Cu II, or Zn II and Ln = Gd III, Tb III, or Dy III ) are reported. The modularity of the Schiff base structure (i.e., symmetric ester group compared with dissymmetric ester group) is illustrated to highlight the possibility offered by the ester for facile functionalization at the periphery of the ligand, in addition to its electron‐withdrawing effect on the complexing core. The introduction of a chiral pool (i.e., a menthyl group) at the ester functions led to a transfer of chirality to the coordination sphere of the Ln in the solid state. Several 3d‐4f complexes were found to crystallize as (NO3 – )‐ or (OH – )‐bridged compounds. Crystal structures and magnetic behaviors are reported for all of the 3d‐4f complexes. Abstract : Ester‐functionalized bicompartmental Schiff base ligands and their 3d‐Ln complexes are reported. Ligands with one (dissymmetric) or two (symmetric) ester groups have been achieved, and the possibility of using these groups to introduce an additional property, such as chirality, is illustrated.