Bis{4,4′,6,6′-tetrachloro-2,2′-[trans-(R,R)-cyclohexane-1,2-diylbis(iminomethylene)]diphenolato-κ4O,N,N′,O′}zirconium(IV)

Abstract

The title mononuclear complex, [Zr(C20H20Cl4N2O2)2], was obtained by allowing hexane to diffuse into a diethyl ether solution of zirconium(IV) sec-butoxide and the enanti­o­meri­cally pure tetra­dentate ligand N,N′-bis­(3,5-dichloro-2-hy­droxy­benz­yl)-trans-(R,R)-1,2-diamino­cyclo­hexane. The metal centre is eight-coordinate and displays a distorted dodeca­hedral coordination environment with average Zr—O and Zr—N bond lengths of 2.082 (9) and 2.441 (8) Å, respectively. In the crystal structure, complex mol­ecules are linked by inter­molecular C—H⋯Cl hydrogen-bond inter­actions into zigzag chains running parallel to the [101] direction. C—H⋯O and N—H⋯O hydrogen bonds are also present.