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Ethyl (E)-2-cyano-3-(4-methylphenyl)acrylate: a second monoclinic polymorph
The title compound, C(13)H(13)NO(2), was previously described in space group P2(1)/c by He et al. [Acta Cryst. (1993), C49, 2000–2002]. The ethyl group is disordered over two sets of sites in a 0.615 (10):0.385 (10) ratio. The C—O—C—C torsion angles containing the ethyl group are −111.6 (10) and 177...
| Autores principales: | , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
International Union of Crystallography
2013
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3648277/ https://www.ncbi.nlm.nih.gov/pubmed/23723897 http://dx.doi.org/10.1107/S1600536813009550 |
| Sumario: | The title compound, C(13)H(13)NO(2), was previously described in space group P2(1)/c by He et al. [Acta Cryst. (1993), C49, 2000–2002]. The ethyl group is disordered over two sets of sites in a 0.615 (10):0.385 (10) ratio. The C—O—C—C torsion angles containing the ethyl group are −111.6 (10) and 177.9 (7)°, while in the previously reported polymorph, the torsion angle is −167.3 (2)°. The molecules pack to form a three-dimensional structure in the ABAB style along the c-axis direction in the title compound, but parallel to the a-axis direction in the reported polymorph. |
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