Journal
JOURNAL OF STRUCTURAL CHEMISTRY
Volume 59, Issue 6, Pages 1440-1445Publisher
PLEIADES PUBLISHING INC
DOI: 10.1134/S0022476618060276
Keywords
synthesis; chalcones; thiophene; crystal structure; hydrogen bond patterns
Funding
- Ministry of Higher Education (MOHE) [07J48, 4F448]
- Laboratorio de Rayos-X del Parque Tecnologico Guatiguara (PTG)
- Universidad Industrial de Santander (UIS), Colombia
- FONACIT, Venezuela [LAB-97000821]
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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 CH...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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