Refn, Susanne published the artcileInfrared spectra of substituted pyrazolones and some reflections on the hydrogen bonding OH. . .N, Name: 5-Phenyl-1H-pyrazol-3(2H)-one, the main research area is .
Disks of KBr were used to obtain spectra for 26 crystalline 5-pyrazolones, with simple alkyl or phenyl substitution in the pyrazolone ring. The region of interest was that of O-H, N-H, and double-bond stretching frequencies. The compounds with an aromatic character show a tautomeric equilibrium between a hydroxypyrazole structure and the zwitterion of the corresponding amide form. The mols. are associated through strong intermol. H bonds. Tautomeric equilibrium constants were estimated by using the spectral data and the known basic ionization constants
Spectrochimica Acta published new progress about Hydrogen bond. 27412-71-1 belongs to class pyrazoles-derivatives, name is 5-Phenyl-1H-pyrazol-3(2H)-one, and the molecular formula is C9H8N2O, Name: 5-Phenyl-1H-pyrazol-3(2H)-one.
Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics