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Crystal Structure, Spectroscopic and DFT Computational Studies of N-(4-Fluorophenyl)-1-(5-Nitrothiophen-2-yl)methanimine

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Abstract

A novel Schiff base compound was synthesized and characterized by IR spectroscopy and X-ray diffraction method. The compound crystallizes in monoclinic space group P21/c with Z = 4 in the unit cell. The ring systems are perfectly planar but the whole molecule is not planar. The dihedral angle between the thiophene and phenyl rings is 38.7(3)°. In the crystal, intermolecular C–H⋅⋅⋅O interactions link the molecules into a C(7) chain along the [20\(\bar {1}\)] direction. The crystal packing is also stabilized by N–O⋅⋅⋅π interaction. The molecular structure and vibrational frequencies of the title compound were calculated using the DFT/B3LYP method with the 6-311++G(d,p) basis set. The calculated results show that the optimized geometry can well reproduce the crystal structure, and the theoretical vibrational frequencies show good agreement with experimental results.

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Funding

This study was supported financially by the Research Centre of Ondokuz Mayıs University (project no. PYO.FEN.1904.18.003).

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Correspondence to Hasan Tanak.

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Hasan Tanak, Karataş, Ş., Meral, S. et al. Crystal Structure, Spectroscopic and DFT Computational Studies of N-(4-Fluorophenyl)-1-(5-Nitrothiophen-2-yl)methanimine. Crystallogr. Rep. 65, 1221–1225 (2020). https://doi.org/10.1134/S1063774520070263

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  • DOI: https://doi.org/10.1134/S1063774520070263

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