view article
Figure 9
The layered structure of PIPQUA ([P{\bar 1}], Z′ = 6; 1,8-di­iodo­naphthalene; Bock et al., 1998BB7). (a) View of the structure along [[01{\bar 1}]]. (b) Views of the layers at x = 0 and the half layer at x = 0.49. (The inversion-related half layers at x = 0.49 and 0.51 interleave.) The [[01{\bar 1}]/2] pseudotranslation is excellent for the layer at x = 0 but for the layer at x = 0.5 the [010]/2 pseudotranslation is much better. The program lists [[01{\bar 1}]/2] only; its qual_range = 0.67 Å. No [010]/2 pseudotranslation is listed because the very different molecular orientations in the layer at x = 0 result in a value of av_rmsd larger than the default tolerance.

Journal logoSTRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS
ISSN: 2052-5206
Volume 76| Part 4| August 2020| Pages 630-642
https://doi.org/10.1107/S2052520620007891
Follow Acta Cryst. B
Sign up for e-alerts
E-alerts
Follow Acta Cryst. on Twitter
Twitter
Follow us on facebook
Facebook
Sign up for RSS feeds
RSS