2,5-Bis(pyridinium-2-yl)-3,6-bis-(2-pyrid-yl)pyrazine bis-[tetra-chlorido-aurate(III)

Anita Abedi,Vahid Amani,Azra Dabbaghi

doi:10.1107/s1600536811036208

Abstract

In the title compound, (C24H18N6)[AuCl4]2, the cation is located on an inversion center. Each of the two independent AuIII ions lies on an inversion center and has a distorted square-planar geometry. In the crystal, intermolecular C—H⋯Cl hydrogen bonds, π–π interactions [centroid–centroid distances = 3.5548 (16) and 3.7507 (16) Å] and Au⋯π interactions [Au⋯centroid distance = 3.6424 (10) Å] are effective in the stabilization of the structure, resulting in the formation of a supramolecular structure. Intramolecular N—H⋯N hydrogen bonds are present in the cation.

Highlights

In the title compound, (C24H18N6)[AuCl4]2, the cation is located on an inversion center
AuIII ions lies on an inversion center and has a distorted square-planar geometry
Symmetry codes: (i) −x+1, −y+1, −z+1; (iv) −x+1, −y+1, −z; (v) x, y−1, z+1

Summary

Bruker APEXII CCD diffractometer

Refinement a Department of Chemistry, North Tehran Branch, Islamic Azad University, Tehran, Iran, and bDepartment of Chemistry, Share-Ray Branch, Islamic Azad University, Tehran, Iran. R factor = 0.019; wR factor = 0.050; data-to-parameter ratio = 20.7. In the title compound, (C24H18N6)[AuCl4]2, the cation is located on an inversion center. AuIII ions lies on an inversion center and has a distorted square-planar geometry. H Cl hydrogen bonds, – interactions [centroid–centroid distances = 3.5548 (16) and 3.7507 (16) Å] and Au interactions [Au centroid distance = 3.6424 (10) Å] are effective in the stabilization of the structure, resulting in the formation of a supramolecular structure. Intramolecular N—H N hydrogen bonds are present in the cation

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Graphite monochromator φ and ω scans