trans-[N,N '-bis(salicylidene)cyclohexane-1,2-diaminato]nickel(II)-chloroform (1/1)

In the title complex, trans-(2,2'-[cyclohexane-1,2-diylbis(nitrilomethylidy ne)]diphenolato-kappa O-4,N,N',O')nickel(II)-chloroform (1/1), [Ni(C20H20N2 O2)]. CHCl3, the Ni atom has a square-planar geometry, slightly tetrahedral ly distorted. The Ni-N and Ni-O bonding distances are within the expected r anges for Ni-Schiff base derivatives. The diimine bridge has a gauche confo rmation with the cyclohexyl ring almost coplanar with the NiN2O2 plane. The complex molecules pack in dimers with an Ni . . . Ni distance of 3.59 (1) Angstrom and form a three-dimensional structure displaying a herring-bone c onfiguration. Channels are occupied by solvent molecules, which are involve d in C-H . . .O hydrogen bonds with the ligand O atoms.