Received 20 September 2013
The title compound, C18H18O2S2, which lies on an inversion center, adopts a gauche+-trans-trans-trans-gauche- (g+tttg-) conformation in the S-CH2-CH2-CH2-CH2-S bond sequence. In the crystal, molecules are packed in a herringbone arrangement through intermolecular C-H interactions.
Data collection: APEX2 (Bruker, 2007); cell refinement: SAINT (Bruker, 2007); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008) and Mercury (Macrae et al., 2006); software used to prepare material for publication: SHELXTL and PLATON (Spek, 2009).
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: IS5305 ).
We thank Dr Masu and Dr Yagishita of the Center for Analytical Instrumentation, Chiba University, for helpful advice on X-ray diffraction measurements. This study was partly supported by a Grant-in-Aid for Scientific Research (C) (22550190) from the Japan Society for the Promotion of Science.
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