Di-chlorido-(pyridine-κN)[2,3,5,6-tetra-kis-(pyridin-2-yl)pyrazine-κ3 N 2,N 1,N 6]nickel(II).

Kwang Ha

doi:10.1107/s2414314621000948

Abstract

In the title complex, [NiCl2(C5H5N)(C24H16N6)], the NiII ion is six-coordinated in a distorted octa-hedral coordination environment defined by three N atoms of the tridentate 2,3,5,6-tetra-2-pyridyl-pyrazine ligand, one N atom of the pyridine ligand and two Cl- anions, with the latter being mutually trans. The complex is disposed about a twofold rotation axis along the a axis. The complex molecules are connected in the crystal via C-H⋯Cl, C-H⋯N and π-π [closest inter-centroid separation = 3.7446 (14) Å between pyridyl rings].

Highlights

In the title complex, [NiCl2(C5H5N)(C24H16N6)], the NiII ion is six-coordinated in a distorted octahedral coordination environment defined by three N atoms of the tridentate 2,3,5,6-tetra-2-pyridylpyrazine ligand, one N atom of the pyridine ligand and two ClÀ anions, with the latter being mutually trans
The complex is disposed about a twofold rotation axis along the a axis
The complex molecules are connected in the crystal via C—HÁ Á ÁCl, C—HÁ Á ÁN and – [closest intercentroid separation = 3.7446 (14) Abetween pyridyl rings]

Summary

Kwang Ha*

In the title complex, [NiCl2(C5H5N)(C24H16N6)], the NiII ion is six-coordinated in a distorted octahedral coordination environment defined by three N atoms of the tridentate 2,3,5,6-tetra-2-pyridylpyrazine ligand, one N atom of the pyridine ligand and two ClÀ anions, with the latter being mutually trans. The complex is disposed about a twofold rotation axis along the a axis. The complex molecules are connected in the crystal via C—HÁ Á ÁCl, C—HÁ Á ÁN and – [closest intercentroid separation = 3.7446 (14) Abetween pyridyl rings]

Structure description

DÁ Á ÁA

Absolute structure parameter

Synthesis and crystallization

Data collection

Special details