Abstract
In the title compound, [ZnBr2(C24H16N6)], the ZnII ion is coordinated by the N,N′,N′′-tridentate 2,3,5,6-tetra-2-pyridylpyrazine ligand and two bromide ions, generating a distorted ZnN3Br2 trigonal-bipyramidal geometry for the metal ion, with both bromide ions in equatorial sites. The dihedral angles between the pyrazine ring and the coordinated pyridine rings are 13.3 (2) and 24.8 (2)°; those between the pyrazine ring and the uncoordinated pyradine rings are 31.3 (2) and 44.2 (2)°. In the crystal, inversion dimers linked by pairs of weak C—H⋯Br hydrogen bonds occur.
Highlights
In the title compound, [ZnBr2(C24H16N6)], the ZnII ion is coordinated by the N,N0,N00 -tridentate 2,3,5,6-tetra-2-pyridylpyrazine ligand and two bromide ions, generating a distorted
The dihedral angles between the pyrazine ring and the coordinated pyridine rings are 13.3 (2) and 24.8 (2) ; those between the pyrazine ring and the uncoordinated pyradine rings are 31.3 (2) and 44.2 (2)
Inversion dimers linked by pairs of weak C—
Summary
R factor = 0.051; wR factor = 0.126; data-to-parameter ratio = 21.5. In the title compound, [ZnBr2(C24H16N6)], the ZnII ion is coordinated by the N,N0 ,N00 -tridentate 2,3,5,6-tetra-2-pyridylpyrazine ligand and two bromide ions, generating a distorted. ZnN3Br2 trigonal-bipyramidal geometry for the metal ion, with both bromide ions in equatorial sites. The dihedral angles between the pyrazine ring and the coordinated pyridine rings are 13.3 (2) and 24.8 (2) ; those between the pyrazine ring and the uncoordinated pyradine rings are 31.3 (2) and 44.2 (2). Inversion dimers linked by pairs of weak C—.
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