Abstract
The asymmetric unit of the title compound, C21H18O2S, consists of two crystallographically independent molecules (A and B). The molecules exist in a trans conformation with respect to the central C=C bond. The naphthalene ring system makes dihedral angles of 51.62 (12) (molecule A) and 52.69 (12)° (molecule B) with the benzene ring. In molecule A, the prop-2-en-1-one group forms dihedral angles of 22.84 (15) and 29.02 (12)° with the adjacent naphthalene ring system and benzene ring, respectively, whereas the corresponding angles are 30.04 (12) and 23.33 (12)° in molecule B. In the crystal, molecules are linked by intermolecular C—H⋯O hydrogen bonds into head-to-tail chains along the a axis. The crystal packing also features C—H⋯π interactions. The crystal studied was a pseudo-merohedral twin with twin law (100 0-10 00-1) and a refined component ratio of 0.6103 (16):0.3897 (16).
Highlights
025, India, and cAdvanced Membrane Science and Technology Centre (AMTEC), Universiti Teknologi Malaysia (UTM), Skudai, Johor Bahru, Malaysia
The molecules exist in a trans conformation with respect to the central C C bond
Molecules are linked by intermolecular C—H O hydrogen bonds into head-to-tail chains along the a axis
Summary
USM, Penang, Malaysia, bMembrane Technology Laboratory, Department of Chemistry, National Institute of Technology-Karnataka, Surathkal, Mangalore 575. 025, India, and cAdvanced Membrane Science and Technology Centre (AMTEC), Universiti Teknologi Malaysia (UTM), Skudai, Johor Bahru, Malaysia. R factor = 0.055; wR factor = 0.136; data-to-parameter ratio = 20.0
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