Haixiang shows hierarchical complexity in clusters

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Haixiang shows hierarchical complexity in clusters

By rich | Published: July 31, 2020

We’ve created an inorganic assembly that assembles with hierarchical complexity, like biomolecules. Hierarchal self-assembly – the ordered arrangement of sub-units along multiple length scales – is important for biomolecules for the functions of life. DNA, RNA, and proteins all have primary, secondary, or more complex structures can form through self-folding or intermolecular interactions. But directing this self-assembly in the lab with inorganic materials is tricky. Previously, a group was able to assemble gold metal clusters with hierarchical complexity (https://science.sciencemag.org/content/354/6319/1580), but the core building blocks, the large gold nanoparticles are inert/non-reactive. Haixiang Han figured out how to use special ligands to form sulfur-bridged Cu13 clusters that can assemble in tertiary hierarchy. The copper has a range of oxidation states, making it potentially useful for catalysis. https://doi.org/10.1021/jacs.0c04764

“Tertiary Hierarchical Complexity in Assemblies of Sulfur-Bridged Metal Chiral Clusters,” H. Han, Y. Yao, Z. Wei, Z. Tang, J. Suntivich, O. Voznyy, and R.D. Robinson^†, J. Am. Chem. Soc. 142, 14495 (2020), DOI: 10.1021/jacs.0c04764

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