Ontology highlight
ABSTRACT:
SUBMITTER: Sun SF
PROVIDER: S-EPMC2979123 | biostudies-literature | 2010 Apr
REPOSITORIES: biostudies-literature
Acta crystallographica. Section E, Structure reports online 20100424 Pt 5
In the title salt, C(18)H(19)N(4)O(+)·PF(6) (-), the dihedral angle between the benzimidazolium and benzimidazole ring systems is 16.24 (2)°. In the cation, a π-π inter-action is observed between the imidazolium ring and the benzene ring of the benzimidazole ring system [centroid-centroid distance = 3.5713 (11) Å]. The PF(6) (-) ion is disordered over two sites, with occupancies of 0.895 (2) and 0.105 (2). In the crystal structure, pairs of N-H⋯N hydrogen bonds link the cations, forming centrosy ...[more]