Three substituted (E)-3-aryl-2-(thienyl)acrylonitriles: isolated molecules, simple hydrogen-bonded chains and hydrogen-bonded sheets

Debora Cobo; Jairo Quiroga; José M de la Torre; Justo Cobo; John N Low; Christopher Glidewell

doi:10.1107/S0108270106026874

Three substituted (E)-3-aryl-2-(thienyl)acrylonitriles: isolated molecules, simple hydrogen-bonded chains and hydrogen-bonded sheets

Acta Crystallogr C. 2006 Sep;62(Pt 9):o550-3. doi: 10.1107/S0108270106026874. Epub 2006 Aug 11.

Authors

Debora Cobo¹, Jairo Quiroga, José M de la Torre, Justo Cobo, John N Low, Christopher Glidewell

Affiliation

¹ Grupo de Investigación de Compuestos Heterocíclicos, Departamento de Química, Universidad de Valle, AA 25360 Cali, Colombia.

PMID: 16954639
DOI: 10.1107/S0108270106026874

Abstract

The structure of (E)-2-(2-thienyl)-3-(3,4,5-trimethoxyphenyl)acrylonitrile, C16H15NO3S, contains no direction-specific intermolecular interactions. The molecules of (E)-3-(4-bromophenyl)-2-(2-thienyl)acrylonitrile, C13H8BrNS, exhibit orientational disorder of the thienyl fragment, and the molecules are linked into simple C(5) chains by a single C-H...N hydrogen bond. In (E)-3-phenyl-2-(3-thienyl)acrylonitrile, C13H9NS, the molecules are linked into sheets by a combination of one C-H...N hydrogen bond and one C-H...pi(arene) hydrogen bond.