Date Published: July 01, 2012
Publisher: International Union of Crystallography
Author(s): Ting Pang, Jia-Cheng Liu, Zan Sun, Chao-Hu Xiao, Ping Cao.
In the title complex, [Ni(C6H6N3O)(NCS)(C6H7N3O)(H2O)] or [Ni(mpko)(SCN)(mpkoH)(H2O)] [where mpkoH = 1-(pyrazin-2-yl)ethanone oxime], the NiII cation is in a slightly distorted octahedral geometry, being coordinated in the equatorial plane by four N atoms from two different mpkoH ligands, one of which is deprotonated, and by one N atom from a thiocyanate anion and one O atom from a water molecule in the axial positions. There is an intramolecular O—H⋯O hydrogen bond involving the oxime units of the two ligands. In the crystal, a three-dimensional supramolecular architecture is formed by O—H⋯O and O—H⋯N hydrogen bonds.
For magnetic properties of related oxime complexes, see: Escuer et al. (2010 ▶); Radek et al. (1999 ▶, 2001 ▶); Spini (1973 ▶).