Crystal Structure and Hirshfeld Surfaces Analysis of the Nickel(II) Complex of the Schiff Base Ligand 6,60-{(1E,10E) Bis(Methanylylidene)}bis[2-(Trifluoromethoxy)

Abstract

In the title complex, (6,6'-{(1E,1'E)-[ethane-1,2-diylbis(azanylylidene)]bis(methanylylidene)}bis[2-(trifluoromethoxy)phenol]-κ 4 O,N,N',O')nickel(II), [Ni(C <inf>18</inf> H <inf>12</inf> F <inf>6</inf> N <inf>2</inf> O <inf>4</inf> )], the nickel(II) ion has a square-planar coordination sphere, being ligated by two N and two O atoms of the Schiff base ligand 6,6'-{(1E,1'E)-[ethane-1,2-diylbis(azanylylidene)]bis(methanylylidene)}bis[2-(trifluoromethoxy)phenol] (L). Inversion-related molecules are linked by a short Ni· · ·Ni interaction of 3.2945 (6) Å forming a dimer. In the crystal, the dimers stack up the a axis, with a closest Ni· · ·Ni separation of ca 3.791 Å. There are no other significant intermolecular interactions present. However, the Hirshfeld surface analysis and the two-dimensional fingerprint plots indicate that the packing is dominated by H· · ·F/F· · ·H, H· · ·H, O· · ·H/H· · ·O and C· · ·H/H· · ·C contacts. © 2019 Iucr. All rights reserved.