Abstract
The crystal structure of the new chalcone derivative (E)-3-(5-bromothiophen-2-yl)-1-(2,5-dichlorothiophen- 3-yl)-2-propen-1-one is synthesized and structurally characterized by spectroscopic IR, NMR, and HRMS techniques. Its crystal and molecular structure is determined from the single crystal X-ray diffractionstudy. This compound crystallizes in the monoclinic system and space group P21/n (N 19). The crystal packing is governed by C—H...O non-conventional hydrogen bond-type intermolecular interactions, forming extended zigzag chains related by 21 screw axes running along the [010] direction, with graph-set C(8). These hydrogen bonds contribute to the stabilization of the crystal structure that packs with an efficiency of 71.4%.
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Original Russian Text © 2018 G. E. Delgado, J. A. Henao, J. H. Quintana, H. M. Al-Maqtari, J. Jamalis, H. M. Sirat.
The text was submitted by the authors in English. Zhurnal Strukturnoi Khimii, Vol. 59, No. 6, pp. 1493–1498, July-August, 2018.
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Delgado, G.E., Henao, J.A., Quintana, J.H. et al. Structural Characterization of a New Chalcone Compound Containing a Thiophene Moiety: (E)-3-(5-Bromothiophen-2-YL)-1- (2,5-Dichlorothiophen-3-YL)-2-Propen-1-One. J Struct Chem 59, 1440–1445 (2018). https://doi.org/10.1134/S0022476618060276
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DOI: https://doi.org/10.1134/S0022476618060276