AI Article Synopsis
- Silver cluster-assembled materials (SCAMs) are specially designed crystalline materials known for their unique shapes and precise structures.
- This study introduces two types of SCAMs: a three-dimensional one (TUS 6) created using a tritopic linker, and a two-dimensional one (TUS 7), highlighting the innovative methods for synthesizing these materials.
- The research reveals how the addition of organic linkers changes the symmetry of silver nanoclusters, providing new insights into how these clusters transform into more complex structures.
Article Abstract
Silver cluster-assembled materials (SCAMs) are well-defined crystalline extended materials hallmarked by their unique geometric structures, atomically precise designability and functional modularity. In this study, we report for the first time the synthesis of a (3,6)-connected three-dimensional (3D) SCAM, [Ag(SBu)(CFCOO)(TPMA)] (designated as TUS 6), TPMA = tris(pyridine-4-ylmethyl)amine, by assembling Ag cluster nodes with the help of a tritopic linker TPMA. Besides, we also prepared a two-dimensional (2D) SCAM, [Ag(SBu)(CFCOO)(TPEB)] (described as TUS 7), TPEB = 1,3,5-tris(pyridine-4-ylethynyl)benzene, by reticulating Ag nodes with a tritopic linker TPEB. Characterized by microscopic and diffraction analyses, the SCAMs revealed distinct morphologies, structural robustness, and phase purity. This paper elucidates how the binding with the organic linkers alters the symmetry of the silver nanoclusters (NCs). Changes in the symmetry of discrete NCs to assembled structures have not been reported yet. This study provides an atomic-level explanation of the transformation of symmetry from NCs to extended structures.
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