6533b7d8fe1ef96bd126ada8
RESEARCH PRODUCT
A second monoclinic polymorph of 2-(3,5-dimethyl-1H-pyrazol-1-yl)-2-hy-droxy-imino-N'-[1-(pyridin-2-yl)ethyl-idene]acetohydrazide.
Matti HaukkaRostislav D. LampekaEbbe NordlanderM. O. Plutenkosubject
Hydrogen bondGeneral ChemistryCondensed Matter PhysicsOximeBioinformaticsMedicinal chemistryOrganic Paperschemistry.chemical_compoundchemistryGroup (periodic table)AmideGeneral Materials Scienceta116Monoclinic crystal systemdescription
The title compound, C14H16N6O2, is a second monoclinic polymorph of 2-[1-(3,5-dimethyl)pyrazolyl]-2-hydroxyimino-N′-[1-(2-pyridyl)ethylidene] acetohydrazide, with two crystallographically independent molecules per asymmetric unit. The non-planar molecules are chemically equal having similar geometric parameters. The previously reported polymorph [Plutenko et al. (2012 ▶). Acta Cryst. E68, o3281] was described in space group Cc (Z = 4). The oxime group and the O atom of the amide group are anti with respect to the C—C bond. In the crystal, molecules are connected by N—H⋯N hydrogen bonds into zigzag chains extending along the b axis.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-04-20 | Acta crystallographica. Section E, Structure reports online |