Synthesis,Characterization, Crystal Structure,and Thermal Analysis of 4-[(3-acetylphenyl)amino]-2-methylidene-4-oxobutanoic Acid |
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| Authors: | Prakash S. Nayak Sumati Anthal Vivek K. Gupta Rajni Kant H. S. Yathirajan |
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| Affiliation: | 1. Department of Studies in Chemistry, Mangalore University, Mangalagangotri, Karnataka, India;2. Post-Graduate Department of Physics &3. Electronics, University of Jammu, Jammu Tawi, India;4. Department of Studies in Chemistry, University of Mysore, Manasangotri, Mysore, India |
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| Abstract: | 4-[(3-Acetylphenyl)amino]-2-methylidene-4-oxobutanoic acid (1) is synthesized by a ring opening reaction of itaconic anhydride with 3-aminoacetophenone and characterized by FT-IR, 1H NMR, UV-Vis, TGA, DTA, and single crystal X-ray diffraction. The crystal of 1 belongs to triclinic unit cell in the P-1 space group with the unit cell dimensions a = 4.9485(3), b = 5.3614(6), c = 22.457(2) Å, α = 88.295(8), β = 89.379(7), γ = 84.495(7), and Z = 2 The crystal structure is solved by direct methods using single-crystal X-ray diffraction data collected at room temperature and refined by full-matrix least-squares procedures to a final R-value of 0.0467 for 1623 observed reflections. Intermolecular N&;sbnd;H?…O and O&;sbnd;H?…O hydrogen bonds links the molecules into chains along [010] direction. In addition the thermal stability of the 1 is determined by using DTA, TGA analysis, and wavelength absorption at λmax = 297 nm is determined by UV-Vis spectrophotometer. |
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| Keywords: | Crystal structure FTIR intermolecular interactions itaconic anhydride NMR spectrum thermal property |
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