The synthesis of the title salt, [Ag(C 6H 7N 4) 2](NO 3) 3, was carried out employing a 1:2 molar ratio of 2,2'-biimidazole and silver nitrate respectively. The cation has crystallographically-imposed C2 symmetry with the metal atom in an almost linear coordination environment [N - Ag - N = 177.01 (17)°]. The crystal structure displays N - H⋯O and C - H⋯O hydrogen-bonding interactions.
S. R. Finch et al., "Bis[2-(1H-imidazol-2-yl-κN3)-1H-imidazol-3-ium]silver(I) Trinitrate," Acta Crystallographica Section E: Structure Reports Online, vol. E67, no. 7, pp. m909-m909, Wiley-Blackwell, Jul 2011.
The definitive version is available at http://dx.doi.org/10.1107/S1600536811021799
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