Nonanuclear Ni(ii) complexes in a [1-7-1] formation derived from asymmetric multidentate ligands: magnetic and electrochemical properties

Abstract

Nonanuclear Ni(ii) complexes, [Ni(Ln)(OH)(HO)] (NiLn, n = 1-4; HLn = 6-acetoacetyl-2-pyridinecarboxylic acid derivatives), were prepared via self-assembly using the asymmetric multidentate ligands HLn. A corner-sharing tetrahedron-type structure, [Ni(μ-OH)], and terminal mononuclear units constitute the nonanuclear structure in a [1-7-1] formation. The electrochemical and magnetic properties of NiLn were modulated by the introduction of various substituents in HLn.