Syntheses, Crystal Structure and Property of a Heptanuclear Cluster

Abstract A new disc-like heptanuclear Ni(II) cluster [Ni7(emmp)6(μ3-N3)6]·(SiF6) (1) (H2emmp = 2-ethyoxy-6-methyliminomethyl-phenol), was synthesized and structurally determined by elemental analysis, IR, and X-ray single-crystal diffraction. Magnetic property of the complex has been investigated. The {Ni7} core displays dominant ferromagnetic interactions from the nature of the binding modes through by the EO-N3 and μ2-O. The latter molecule exhibits a unique planar core topology with 1:1.67 of the N3- : NiII ratio.