Synthesis and crystal structure of a new chiral α-amino­oxime nickel(II) complex

A dinuclear nickel complex with (S)-limonene based amino­oxime ligand has been isolated and its crystal structure determined. The resolved structure of dichloridobis­{(2S,5R)-2-methyl-5-(prop-1-en-2-yl)-2-[(pyridin-2-yl)methyl­amino]­cyclo­hexan-1-one oxime}dinickel(II), [Ni(2)Cl(2)(C(16)H(23)ClN(3)O)(2)], at 100 K has monoclinic (P2(1)) symmetry. The two Ni(II) ions in the dinuclear complex are each coordinated in a distorted octa­hedral environment by three nitro­gen atoms, a terminal chloride and two μ bridging chlorides. Each oxime ligand is coordinated to nickel(II) by the three nitro­gen atoms, leading to two five-membered chelate rings, each displaying an envelope conformation. In the crystal, numerous inter­molecular and intra­molecular hydrogen bonds lead to the formation of a three-dimensional network structure.