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Synthesis, molecular structure, FT-IR, Raman, XRD and theoretical investigations of (2E)-1-(5-chlorothiophen-2-yl)-3-(naphthalen-2-yl)prop-2-en-1-one

[Display omitted] •A novel 5-chlorothiophene chalcone was synthesized.•The compound was characterized by FT-IR, Raman and X-ray diffraction.•The compound crystallized in monoclinic space group P21/c.•DFT method was used to predict the structural and spectroscopic parameters.•There is a good agreemen...

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Published in:Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy Molecular and biomolecular spectroscopy, 2014-11, Vol.132, p.174-182
Main Authors: Chidan Kumar, Chandraju Sadolalu, Fun, Hoong Kun, Parlak, Cemal, Rhyman, Lydia, Ramasami, Ponnadurai, Tursun, Mahir, Chandraju, Siddegowda, Quah, Ching Kheng
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Language:English
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Summary:[Display omitted] •A novel 5-chlorothiophene chalcone was synthesized.•The compound was characterized by FT-IR, Raman and X-ray diffraction.•The compound crystallized in monoclinic space group P21/c.•DFT method was used to predict the structural and spectroscopic parameters.•There is a good agreement between theory and experiment. A novel (2E)-1-(5-chlorothiophen-2-yl)-3-(naphthalen-2-yl)prop-2-en-1-one [C17H11ClOS] compound has been synthesized and its structure has been characterized by FT-IR, Raman and single-crystal X-ray diffraction techniques. The isomers, optimized geometrical parameters, normal mode frequencies and corresponding vibrational assignments of the compound have been examined by means of the density functional theory method, employing, the Becke-3-Lee–Yang–Parr functional and the 6-311+G(3df,p) basis set. Reliable vibrational assignments and molecular orbitals have been investigated by the potential energy distribution and natural bonding orbital analyses, respectively. The compound crystallizes in the monoclinic space group P21/c with the unit cell parameters a=5.7827(8)Å, b=14.590(2)Å, c=16.138(2)Å and β=89.987 (°). The CC bond of the central enone group adopts an E configuration. There is a good agreement between the theoretically predicted structural parameters and vibrational frequencies and those obtained experimentally.
ISSN:1386-1425
DOI:10.1016/j.saa.2014.04.155