view article
Figure 10
The placement of guest molecules, (a) in the calix crater (polar aprotic solvent, e.g. DMSO) or (b) among the lower-ring substituents (protic solvent, e.g. n-BuOH), determined by the supramolecular interactions in morphotropically related crystal lattices.

IUCrJ
Volume 2| Part 6| September 2015| Pages 675-690
ISSN: 2052-2525
doi:10.1107/S2052252515014608