Abstrakt: |
The title compounds, {4,4′-dibromo-2,2′-[1,3-propanediylbis(nitrilomethylidyne- N)]diphenolato- O, O′}nickel(II), [Ni(C17H14Br2N2O2)], and {4,4′-dichloro-2,2′-[1,3-propanediylbis(nitrilomethylidyne- N)]diphenolato- O, O′}copper(II), [Cu(C17H14Cl2N2O2)], lie on crystallographic twofold axes. In both structures, the metal coordination sphere is a tetrahedrally distorted square plane formed by the four-coordinate N2O2 donor set of the Schiff base imine-phenol ligands. In the Ni compound, the Ni-O and Ni-N distances are 1.908 (3) and 1.959 (4) Å, respectively, while in the Cu compound, the Cu-O and Cu-N distances are 1.907 (2) and 1.960 (2) Å, respectively. The two Schiff base moieties, which themselves are nearly planar, are inclined at an angle of 29.26 (7)° for the Ni compound and 29.26 (5)° for the Cu compound. [ABSTRACT FROM AUTHOR] |