Reactions of Ni(CH3COO)2·4H2O and NiCl2·6H2O with Schiffbaseligands yielded di and tetranuclear nickel(II) complexes of [Ni2(Hhsae)2(CH3COO)2(MeOH)2] (1) and [Ni4(sae)4(MeOH)4] (2) (H2hsae=2-(5-hydroxysalicylideneamino)ethanol and H2sae=2-salicylideneaminoethanol). Magnetic susceptibility measurements revealed that 1 and 2 have singlet and nonet spin ground states, respectively.
Structures and magnetic properties of copper(II), nickel(II) and manganese(II) cubes are presented. In the cubes, four metal ions are assembled into the cubes by tridentate Schiff base ligands. Magnetic succeptibility measurements revealed the copper and nickel cubes have high-spin ground state, while the manganese cube has a S = 0 spin ground state. (C) 2003 Elsevier Science Ltd. All rights reserved.