Synthesis and Structures of Novel Discrete Ni(II)-Ln(III) Heterodinuclear Complexes (Ln = Gd or Lu)

The first discrete NiLn heteronuclear complexes, [Ni(salabza)Ln(hfac)3] (Ln = Gd(III) and Lu(III)), were synthesized, where H2salabza and Hhfac denote N,Nʹ-bis (salicylidene)-2-aminobenzylamine and 1,1,1,5,5,5-hexafluoroacetylacetone, respectively. Structural analyses revealed that the Ni(II) and Ln(III) ions are bridged by the two phenolate oxygen atoms of salabza^2- and that the shortest intermolecular separation is > 5.9 A for the Ni-Ni distance, indicating that the present complexes consist of a discrete dinuclear NiLn unit.