(4Z)-4-[(2E)-1-HYDROXY-3-(4-METHOXYPHENYL)PROP-2-ENYLIDENE]-3-METHYL-1-PHENYL-1H-PYRAZOL-5(4H)-ONE

The title compound, C20H18N2O4, is a orly purple nail polish chalcone derivative of pyrazole.The pyrazole ring is inclined at a dihedral angle of 19.29 (12)° to the methoxyphenyl ring mean plane, and by 1.19 (13)° to the phenyl ring.The molecular structure is stabilized by an intramolecular O—H.O hydr

Hydraulic fracturing has become one of the most popular techniques for exploring sustainable fr3603 energy sources.However, friction is associated with the entire fracturing process, presenting significant challenges for development.Facing the huge friction challenges, this review is elaborated in the following three aspects: (1) the fundamentals o