Crystal structure of 2-cyano-3,3-bis-(ethyl-sulfan-yl)- N- o-tolyl-acryl-amide

Rasha A Azzam; Galal H Elgemeie; Rokia Ramadan; Peter G Jones

doi:10.1107/S2056989017005783

Crystal structure of 2-cyano-3,3-bis-(ethyl-sulfan-yl)- N- o-tolyl-acryl-amide

Acta Crystallogr E Crystallogr Commun. 2017 Apr 28;73(Pt 5):752-754. doi: 10.1107/S2056989017005783. eCollection 2017 May 1.

Authors

Rasha A Azzam¹, Galal H Elgemeie¹, Rokia Ramadan¹, Peter G Jones²

Affiliations

¹ Chemistry Department, Faculty of Science, Helwan University, Cairo, Egypt.
² Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Postfach 3329, D-38023 Braunschweig, Germany.

Abstract

In the mol-ecule of the title compound, C₁₅H₁₈N₂OS₂, the central S₂C=C(CN)C moiety is planar (r.m.s. deviation = 0.029 Å). The C=O and C-CN groups are trans to each other across their common C-C bond. In the crystal, one classical and two 'weak' hydrogen bonds combine with borderline N⋯N and S⋯S contacts to form layers parallel to (10-2). One ethyl group is disordered over two positions with relative occupancy 0.721/0.279 (7).

Keywords: crystal structure; cyanoketene; thioacetal.