Bis(2,2′-bi-1H-imidazole)copper(II) bis(1,1,3,3-tetracyano-2-ethoxypropenide)

Bis(2,2′-bi-1H-imidazole)copper(II) bis(1,1,3,3-tetracyano-2-ethoxypropenide)

In the title compound, [Cu(C6H6N4)2](C9H5N4O)2, the Cu2+ ion (site symmetry overline{1}) is coordinated by two N,N′-bidentate 2,2′-biimidazole (H2biim) ligands, generating a square-planar CuN4 geometry. The dihedral angle between the aromatic rings in the ligand is 0.70&a...

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Bibliographic Details
Main Authors: Bachir Gaamoune, Zouaoui Setifi, Adel Beghidja, Malika El-Ghozzi, Fatima Setifi, Daniel Avignant
Format: Article
Language:English
Published: International Union of Crystallography 2010-08-01
Series:Acta Crystallographica Section E
Online Access:http://scripts.iucr.org/cgi-bin/paper?S1600536810029752
Description
Summary:In the title compound, [Cu(C6H6N4)2](C9H5N4O)2, the Cu2+ ion (site symmetry overline{1}) is coordinated by two N,N′-bidentate 2,2′-biimidazole (H2biim) ligands, generating a square-planar CuN4 geometry. The dihedral angle between the aromatic rings in the ligand is 0.70 (9)°. In the polynitrile 1,1,3,3-tetracyano-2-ethoxypropenide (tcnoet) anion, the C—N, C—C and C—O bond lengths indicate extensive electronic delocalization. An alternative description for the metal-ion geometry is an extremely distorted CuN6 octahedron, with two N-bonded tcnoet anions completing the coordination. In the crystal, the components are linked by N—H...N and C—H...N interactions.
ISSN:1600-5368

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