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Figure 8
Scheme of the layer contacts of the title compounds observed in (a) the common case, (b) oxESEM (3b) and (c) polytype II of DSEM (4) and NSEM-TBDMS (5). Silyl groups are represented by rectangles, the yne fragments by lines and the center unit of the molecules (spacer, methylthio/methylsulfonyl and ene fragment) by ellipses.

IUCrJ
Volume 2| Part 5| September 2015| Pages 584-600
ISSN: 2052-2525
https://doi.org/10.1107/S2052252515011665