A simple helix based on 2,2′-biimidazole. Crystal and molecular structure of [Ag(NO3)(H2biim)]n

Syntheses, crystal structures and luminescent properties of two new 1D d10 coordination polymers constructed from 2,2′-bibenzimidazole and 1,4-benzenedicarboxylate

“…In the formally neutral form, two nitrogen donors in coplanar rings can adopt a syn orientation, which is similar to the chelate mode of 2,2 0 -bipyridine. However, H 2 bibzim differs from bipyridine by the presence of five-membered rings, which change the bite angle for chelate, resulting in the formation of a rich variety of oligomeric or polymeric structures [9,10]. In addition, the residual N-H entities form particular hydrogen-bond interactions from which supramolecular assemblies can be constructed.…”

Bis[2-(phenylazo)imidazole-N]silver(I) nitrate methanol solvate

“…The title complex is monomeric and the Ag atom is not in the expected four-coordinate environment, but is linked to only two N atoms from different imidazole tings in a linear coordination [N1--Ag l--N5 = 174.9 (1)°]. This is comparable to the values in [Ag(NO3)(H2biim)]n [biim is biimidazole; N1B--Ag--N2A = 162.3 (1)°; Hester et al, 1997] and Ag(C3H4N2)2NO3 (Nll--Ag--N21 = 172.0°; Antti et al, 1971).…”

[B(O–C6H4–CN)4]– based Silver and Copper Coordination Polymers

“…[Ag(NO 3 )(H 2 biim)] n (H 2 biim = 2,2Ј-biimidazole). [22] The helical motive is charac- Colorless crystals were obtained from acetonitrile. 3·3CH 3 CN crystallizes isostructurally to compound 2 with similar cell parameters [cf.…”