Acta Cryst. (2010). E66, m959-m960  [ doi:10.1107/S1600536810027820 ]

Dibromido(2,3,5,6-tetra-2-pyridylpyrazine-³N²,N¹,N⁶)zinc(II)

R. Ahmadi, K. Kalateh and V. Amani

Abstract: In the title compound, [ZnBr₂(C₂₄H₁₆N₆)], the Zn^II 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-HBr hydrogen bonds occur.

Online 17 July 2010

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