Acta Cryst. (2007). E63, m2630  [ doi:10.1107/S1600536807046764 ]

Bis[-5-(pyrazin-2-yl)tetrazol-1-ido]bis[azido(2,2'-bipyridine)copper(II)]

Y.-J. Zhang, X. Fang, M.-L. Cao, H.-Y. Yu and J.-D. Wang

Abstract: The title compound, [Cu₂(C₅H₃N₆)₂(N₃)₂(C₁₀H₈N₂)₂], consists of isolated neutral centrosymmetric dinuclear units. Each molecule comprises two Cu atoms, two 2-tzpz^- ligands [2-Htzpz = 2-(1H-tetrazol-5-yl)pyrazine], two 2,2'-bipyridine (bpy) ligands and two azide groups. The 2-tzpz^- ligand is tridentate, utilizing N atoms from the tetrazole and pyrazine rings to chelate to one Cu²⁺ ion and a second tetrazole N atom to form a bridge to the second Cu²⁺ ion. The coordination geometry about each Cu²⁺ center is slightly distorted octahedral. The crystal packing is stabilized by intermolecular C-HN hydrogen bonds.

Online 29 September 2007

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