Acta Crystallographica Section E

Structure Reports Online

Volume 68, Part 5 (May 2012)

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metal-organic compounds

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Bis(acetato-O)bis(pyridine-2-aldoxime-²N,N')nickel(II)

Y. Si

Abstract: In the mononuclear title compound, [Ni(CH₃COO)₂(C₆H₆N₂O)₂], the Ni^II atom is coordinated by two pyridine-2-aldoxime (PaoH) ligands and two acetate groups, with cis coordination for the pairs of identical ligands. While each acetate group binds to the Ni^II atom by one O atom, each PaoH chelates the Ni^II atom through two N atoms. The O atom on PaoH is not deprotonated and does not participate in bonding to the Ni^II atom. Thus, the Ni^II atom exhibits an octahedral environment. Intramolecular O-HO hydrogen-bonding interactions and intermolecular C-HO hydrogen-bonding interactions are present in the structure. Adjacent molecules pack along [100] through van der Waals forces.

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