Syntheses, Structures and Properties of Three New Trinuclear Nickel Clusters with (2-Hydroxy-4-methoxyphenyl)-phenyl-methanone

Three new nickel clusters [Ni3(hmpm)4(DMF)2(X)2]·Y (1, X = HCOO−, Y = 0; 2, X = CH3COO−; Y = C5H8; 3, X = F3CCOO−, Y = 0.5H2O, Hhmpm = (2-hydroxy-4-methoxy-phenyl)-phenyl-methanone) have been prepared via solvothermal method. They were characterized by elemental analysis, IR, UV–Vis, fluorescence and X-ray single-crystal diffraction. All three compounds are defined as trinuclear clusters with three nickel atoms linked in line. Herein, we have used three different carboxylate radicals. The results indicate that the steric hindrance effects in carboxylate radicals do not influence the structures of the clusters. The magnetic investigation shows that complexes 1–3 exhibit a ferromagnetic coupling between NiII ions.