6533b83afe1ef96bd12a712d
RESEARCH PRODUCT
Pimobendan B from powder diffraction data
Andris ActinsAnatoly MishnevAlvis ZvirgzdinsMara Delinasubject
BenzimidazoleCrystallographyHydrogen bondGeneral ChemistryDihedral angleCondensed Matter PhysicsRing (chemistry)BioinformaticsOrganic PapersCrystalchemistry.chemical_compoundCrystallographychemistryQD901-999General Materials SciencePowder diffractiondescription
The title molecule, C19H18N4O2{systematic name: (RS)-6-[2-(4-methoxyphenyl)-1H-benzimidazol-5-yl]-5-methyl-4,5-dihydropyridazin-3(2H)-one}, adopts an extended conformation. The dihedral angles between the central benzimidazole ring sytem and the pendant methoxyphenyl and pyridazinone residues are 1.41 (18) and 9.7 (3)°, respectively. In the crystal, N—H...N hydrogen bonds link the imadazole groups into [001] chains, and pairs of N—H...O hydrogen bonds link the pyridazinone groups into dimers. Together, these generate a two-dimensional supramolecular structure parallel to (010). The layers are linked by C—H...π interactions.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-10-01 | Acta Crystallographica Section E Structure Reports Online |