In a recent article, creation of hollow nanospheres Gd20, Gd32, Gd50 and Gd60 is described using the approach to assemble fragments containing different polygons. While structural analysis revealed the symmetries of the respective nanospheres, magnetic studies show in theory and experiment that these polyhedra show antiferromagnetic interaction which can be attributed to classical spins at the Gd sites. Magnetic measurements can even be used as "fingerprints" to identify the polyhedra.
Lei Qin, Guojun Zhou, You-Zhu Yu, Hiroyuki Nojiri, Christian Schröder, Richard E. P. Winpenny, and Yan-Zhen Zheng
Topological Self-Assembly of Highly-Symmetric Lanthanide Clusters: A Magnetic Study of Exchange-Coupling “Fingerprints” in Giant Gadolinium(III) Cages
J. Am. Chem. Soc. 139, 16405-16411 (2017)