The whole crystal structure basically consists of a complex network of C-H⋯O contacts with no single, linear C-H⋯O contacts, only contacts that involve two (bifurcated), and mostly three or four neighbors. Again, no unusually short contacts are found. The many C-H⋯O contacts between the two stacks involve at least one equatorial hydrogen or oxygen atom. None of these C-H⋯O contacts is particularly short (all are > 2.4 Å). This stacking involves axial hydrogen atoms on one molecule and the axial oxygen atoms on the adjacent molecule in the stack. The molecules form two stacks parallel to the a axis with the molecules being one a translation distance from each other. The crystal structure of 1,3-dithiane 1,1,3,3-tetraoxide, C 4H 8O 4S 2, has been determined to examine the intermolecular C-H⋯O hydrogen bonds in a small molecule with highly polarized hydrogen atoms.
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