Stellated polyhedral assembly of a topologically complicated Pd4L4 ‘Solomon cube’
Author: ["Tanya K. Ronson","Julie Fisher","Lindsay P. Harding","Pierre J. Rizkallah","John E. Warren","Michaele J. Hardie"]
Publication: Nature Chemistry
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Abstract
Metallosupramolecular chemistry relies on self-assembly processes in which complicated species form through labile dative-covalent interactions. Two remarkable areas of this chemistry are the synthesis of topologically complicated threaded assemblies and of three-dimensional (3D) polyhedral assemblies. Very few polyhedral 3D metallosupramolecular assemblies show threaded motifs within them. Here we report an example of a new type of threaded 3D metallosupramolecular assembly built from four organic ligands and four palladium ions, a Pd4L4 so-called ‘Solomon's cube’ in which interweaving and twisting of the ligands form both Solomon's links and figure-of-eight ring motifs. In the solid state, six of these Pd4L4 tetramers assemble into a hollow spheroid that closely resembles a stellated truncated hexahedron. A topologically non-trivial metallosupramolecular structure is formed by a Pd4L4 complex in which interweaving and twisting of the ligands results in both Solomon's Link and figure-of-eight ring motifs. In the solid state, six of these complexes assemble into a hollow spheroid that closely resembles a stellated truncated hexahedron.
Cite this article
Ronson, T., Fisher, J., Harding, L. et al. Stellated polyhedral assembly of a topologically complicated Pd4L4 ‘Solomon cube’. Nature Chem 1, 212–216 (2009). https://doi.org/10.1038/nchem.213
