view article
Figure 1
(a) The structure of the semi-rigid tetraacetic acid H4L. (b) A representation of the molecular system with its three different domains, namely concave, trough and basin, for guest inclusion.

IUCrJ
Volume 2| Part 5| September 2015| Pages 552-562
ISSN: 2052-2525
https://doi.org/10.1107/S2052252515012506