The Synthesis and Characterization of(E)-4-(3,5-Dibromo-4-Hydroxyphenylmethylene Amino)-2,3-Dimethyl-1-Phenyl-1,2-Dihydropyrazole-5-One
In this paper(E)-4-(3,5-dibromo-4-hydroxyphenylimino)-2,3-dimethyl-1-phenyl-1,2-dihydropyrazole-5-one was synthesized by condensation reaction using 3,5-dibromo-4-hydroxyphenylacetaldehyde and 4-aminoantipyrine in methanol as solvent.The generated compound was crystallized using ethanol,and after 5 days,a light yellow crystal was obtained.Its structure was characterized by X-ray single crystal diffraction,belonging to the monoclinic system,P21/c space group,cell parameters a=12.019 7(11)Å,b=10.823 9(10)Å,c=13.392 1(12)Å,β=94.870(2)°,V=1 736.0(3)Å3,Z=4,Dx=1.780 mg·m-3,θ=2.4-25.5 °,μ=4.69 mm-1,T=295(2)K.Obtain the infrared spectrum of the product using a Fourier transform infrared spectrometer.
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