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Heterometallic Ni/Zn amine complexes possessing extended 2D and 3D hydrogen-bonded networks prepared from zinc oxide |
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| Authors: | Oksana V Nesterova Svitlana R Petrusenko Vladimir N Kokozay Jens K Bjernemose |
| Institution: | a Department of Inorganic Chemistry, National Taras Shevchenko University, Volodymyrska Str. 64, Kyiv 01033, Ukraine b Chemistry M313, School of Biomedical and Chemical Science, University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia c Department of Chemistry, University of Southern Denmark, Campusvej 55, DK-5230 Odense M, Denmark d Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, UK |
| 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 dien = 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. |
| Keywords: | Heterometallic complexes Nickel(II) Zinc(II) Amine ligands H-bonds |
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