Abstract
Derivatives hydrazone are attributed interesting pharmacological properties. The compound under study (E)-ethyl 4-(2-(thiofen-2-ylmethylene) hydrazinyl)benzoate (1), crystallized from ethanol as translucent light yellow thin plates. They are monoclinic, space group P21/c, with unit cell parameters a = 8.846(6), b = 20.734(14), c = 7.583(5) Å, β = 95.743(13)°, V = 1383.8(16) Å3. Three hydrogen bonds and two intermolecular π-interaction perpendiculars to the hydrogen bonds patterns are observed in the crystal structure. A detailed description of these interactions will be presented. Also, semiempirical calculations (PM6) show the formation in the gas phase of a supramolecular chain, emulating the C(8) graph set seen in the crystal structure of the compound.
Graphical Abstract
The synthesis and crystal structure of the title compound, C14H14N2O2S, is reported.
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Acknowledgments
The authors thank Fondo Nacional de Ciencia, Tecnología e Innovación (FONACIT Proyecto de apoyo a Grupos No. G-2005000403) and grant LOCTI-2007-0003, Instituto Zuliano de Investigaciones Tecnológicas (INZIT), CONDES-LUZ, and Petroregional del Lago S. A. (PERLA) for partial financial support of this work, and to Prof. Graciela Diaz de Delgado for helpful discussions.
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Morales-Toyo, M., Alvarado, Y.J., Restrepo, J. et al. Synthesis, Crystal Structure Analysis, Small Cluster Geometries and Energy Study of (E)-Ethyl-4-(2-(thiofen-2-ylmethylene)hydrazinyl)benzoate. J Chem Crystallogr 43, 544–549 (2013). https://doi.org/10.1007/s10870-013-0455-5
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DOI: https://doi.org/10.1007/s10870-013-0455-5