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. 2008 Nov 20;64(Pt 12):o2367.
doi: 10.1107/S1600536808037355.

2-r-(4-Chloro-phen-yl)-6-c-phenyl-3,4,5,6-tetra-hydro-2H-thio-pyran-4-one 1-oxide

A Thiruvalluvar, S Balamurugan, R J Butcher, K Pandiarajan, D Devanathan

2-r-(4-Chloro-phen-yl)-6-c-phenyl-3,4,5,6-tetra-hydro-2H-thio-pyran-4-one 1-oxide

A Thiruvalluvar et al. Acta Crystallogr Sect E Struct Rep Online. .

Abstract

The thio-pyran unit of the title mol-ecule, C(17)H(15)ClO(2)S, is in chair form. A crystallographic mirror plane bis-ects the mol-ecule, passing through the O=S and the opposite C=O atoms of the central ring, with statistical disorder of the Cl atom. The geometry around the S atom is tetra-hedral and the carbonyl C is planar. The 4-chloro-phenyl group at the 2 position and the phenyl ring at the 6 position have equatorial orientations. Inter-molecular C-H⋯O and C-H⋯Cl hydrogen bonds are found in the crystal structure. In addition, there is a short O⋯C inter-molecular contact [2.970 (5) Å].

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Figures

Fig. 1.
Fig. 1.
The molecular structure of the title compound with the atomic numbering and 30% probability displacement ellipsoids. The unlabelled and labelled atoms are related by mirror plane [symmetry code: x, 1/2 - y, z].
Fig. 2.
Fig. 2.
The packing of the title compound, viewed down the c axis. Dashed lines indicate hydrogen bonds. H atoms not involved in hydrogen bonding have been omitted.
See this image and copyright information in PMC

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