Carbonato-bridged heteronuclear NiII2LnIII2 (Ln = Tb, Dy, Ho, Er, Tm, Yb, Lu) complexes synthesized by fixation of atmospheric CO2 - Structural and magnetic studies

Carbonato-bridged complexes [(μ4-CO3)2{NiLn(L)(MeOH)(CH3COO)}2]·solvent (Ln = Tb (1), Dy (2), Ho (3), Er, (4), Tm (5), Yb (6), Lu(7)) were obtained. In 1 and 2 the metal centers are ferromagnetic couple while in 3-6 both the isotropic exchange, a thermal depopulation of mJ sublevels and magnetic anisotropy are observed.