Heterometallic Ni/Zn amine complexes possessing extended 2D and 3D hydrogen-bonded networks prepared from zinc oxide

Reference:

Nesterova, O. V., Petrusenko, S. R., Kokozay, V. N., Skelton, B. W., Bjernemose, J. K. and Raithby, P. R., 2005. Heterometallic Ni/Zn amine complexes possessing extended 2D and 3D hydrogen-bonded networks prepared from zinc oxide. Inorganica Chimica Acta, 358 (9), pp. 2725-2738.

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Abstract

Five novel heterometallic Ni/Zn coordination compounds [Ni(en)(3)][ZnCl4] (1), [Ni(en)(Hea)(2)][ZnCl4] (2), [Ni(dien)(2)][ZnCl4] (3), [Ni(en)(3)][ZnCl4] (.) 2DMSO (4) and [Ni(en)(3)][Zn(NCS)(4)] - CH3CN (5), where en = ethylenediamine (ethane- 1,2-diamine), Hea = monoethanolamine (2-aminoethanol) and then = diethylenetriamine (1,4,7-triazaheptane), have been synthesized by means of the open-air reaction of zinc oxide, nickel chloride (or nickel powder), NH4X (X = Cl, NCS) and ligand (en, dien, Hea) in non-aqueous solvents, such as DMSO, DMF, CH3OH and CH3CN. The choice of a counter-anion in the initial ammonium salt as well as selection of the ligand and solvent provides an effortless approach to the controlled assembly of two- or three-dimensional extended networks assisted by hydrogen bonding. Crystallographic investigations reveal that 1, 2 and 5 possess 3D, while 3 and 4 exhibit 2D H-bonded crystal structures. The structures of the compounds exhibit six-coordinated Ni(II) centers and four-coordinated Zn(II) centers in distorted octahedral and tetrahedral geometries, respectively. (c) 2005 Elsevier B.V. All rights reserved.

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