Ontology highlight
ABSTRACT:
SUBMITTER: Yamuna TS
PROVIDER: S-EPMC3998361 | biostudies-other | 2014 Feb
REPOSITORIES: biostudies-other
Acta crystallographica. Section E, Structure reports online 20140129 Pt 2
In the cation of the title salt, C3H6N3 (+)·C4H5O4 (-), the protonated pyrazolium ring is planar (r.m.s. deviation = 0.012 Å). An intra-molecular C-H⋯O hydrogen bond occurs in the anion. In the crystal, N-H⋯O hydrogen bonds and a weak C-H⋯O inter-action between the cations and anions form two sets of R 2 (2)(8) graph-set ring motifs. Inter-molecular O-H⋯O hydrogen bonds between these lead to a criss-cross pattern along the b axis. In addition to the classical hydrogen bonds, a weak C-H⋯π(pyrazol ...[more]