Research Article: (Methanol-κO){1-[2-(piperazin-4-ium-1-yl-κN1)ethyl­imino­methyl-κN]naphthalen-2-olato-κO}bis­(thio­cyanato-κN)nickel(II) methanol monosolvate

Date Published: May 01, 2012

Publisher: International Union of Crystallography

Author(s): Pin-Ai Li.


In the title solvated complex, [Ni(C17H21N3O)(NCS)2(CH3OH)]·CH3OH, the Ni2+ ion is coordinated by one phenolate O, one imine N, and one amine N atom of the tridentate Schiff base ligand, two thio­cyanate N atoms and one methanol O atom, resulting in a distorted cis-NiO2N4 octa­hedral geometry. The chelate ring formed by the phenolate O and imine N atoms approximates to an envelope with the Ni atom as the flap, whereas the chelate ring formed by the two N atoms is twisted about the C—C bond. In the crystal, the components are linked by O—H⋯O, N—H⋯O, N—H⋯S, and O—H⋯S hydrogen bonds.

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For background to the biological properties of nickel complexes of Schiff bases, see: Chohan & Kausar (1993 ▶); Osowole et al. (2008 ▶); Arif et al. (2011 ▶). For related structures, see: Ji & Lu (2010 ▶); Wang (2010 ▶); Xue et al. (2010 ▶).