Crystal structure of bis(diphenylglyoximato)nickel(II), Ni(pdg)2

Abstract

Abstract The crystals of bis(diphenylglyoximato)Ni(II); Ni(dpg)2, C28H22N4NiO4, belong to the orthorhombic, space group Iba2 with lattice constants of a = 15.194(2) Å, b = 22.350(3) Å, c = 7.109(1) Å, V = 2414.1(5) Å3 and Z = 4. Molecules are stacking along the c axis with glyoximato planes parallel to each other, staggered by 90° with respect to adjacent molecules. The planes of the phenyl groups are arranged in a propeller-like form with the dihedral angles of 41.78° and 54.03° against glyoximato planes. The CH/π interactions between phenyl groups of adjacent molecules seem to generate long metal-metal distances of 3.554 Å. The glyoxime ligand takes asymmetrical configuration O1–H … O2, with the O1 … O2 distance of 2.446(9) Å.