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The title complex, [NaNi(C5H7O2)3] n , contains an anionic tris(acetylacetonato)nickelate(II) unit, [Ni(acac)3] (acac is acetylacetonate), with a highly regular octahedral coordination geometry. The NiII cation lies on a Wyckoff a site, resulting in D 3 symmetry of the anion. Charge balance is provided by sodium cations, which occupy Wyckoff type b sites. Each sodium cation is surrounded by two [Ni(acac)3] anions, each of which is connected to the alkali metal through three O atoms, in a fac configuration. This arrangement leads to the formation of linear [Na{Ni(acac)3}] n chains along the c axis. The Ni...Na distance is 2.9211 (10) Å. The title complex is one of the few examples of heterometallic systems based on alkali and transition metal cations bridged by acetylacetonate ligands.
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Document Type: Research Article

Publication date: May 15, 2013

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