Add time:08/17/2019         Source:sciencedirect.com

The molecular structure of a thioamide derivative ethyl 2-{[(Z)3-(4-chlorophenyl)-3-hydroxy-2-propene-1-thione] amino} acetate was determined by X-ray diffraction. The proton NMR (1H NMR), Fourier Transform Infra-Red (FT-IR) and Fourier Transform Raman (FT-Raman) spectra of the compound were recorded and analyzed. The conjugated enol form of the compound was crystallized in the monoclinic space group P21/c, with unit cell dimensions a = 12.514(2) Å, b = 5.403(5) Å, c = 21.233(3) Å, β = 94.597(4)°. The structure was solved by direct methods and refined to the R value of 0.0462. The thioamide moiety in the compound adopts the Z-conformation and the CN bond shows a high rotational barrier. The geometry in the gas phase was optimized by B3LYP and RHF quantum mechanical calculations using Gaussian 09 programme and the vibrational frequencies were calculated. The experimental and theoretical data are in good agreement.

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