LAUSR

Ester-functionalized bi-compartmental Schiff-base ligand and their 3d-Ln complexes with 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 vs dissymmetric, ester-group) is illustrated to highlight the possibility offered by the ester for facile functionalization at the periphery of the ligand, in addition of 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 have been found to crystallize as NO3- or OH- bridged compounds. Crystal structures and magnetic behaviors are reported for all the 3d-4f complexes.