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Updated: Mar 14, 2026
![The Synthesis of [Sn10SiSiMe334]2- Using a Metastable SnI Halide Solution Synthesized via a Co-condensation Technique](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F54498.jpg&w=3840&q=50)
The Synthesis of [Sn10SiSiMe334]2- Using a Metastable SnI Halide Solution Synthesized via a Co-condensation Technique
Published on: November 28, 2016
Assembly of Heterometallic Silver(I)-Copper(I) Alkyl-1,3-diynyl Clusters via Inner-Core Expansion.
Sam C K Hau1,2, Margaret C-L Yeung3, Vivian W-W Yam3
1Department of Chemistry and Center of Novel Functional Molecules, The Chinese University of Hong Kong , Shatin, New Territories, Hong Kong SAR, People's Republic of China.
Researchers created new silver-copper clusters from tetranuclear silver precursors. These heterometallic clusters show potential for novel materials, expanding on homonuclear cluster chemistry.
Area of Science:
- Supramolecular Chemistry
- Inorganic Chemistry
- Materials Science
Background:
- Tetranuclear supramolecular precursors with alkyl-1,3-diynyl ligands were synthesized.
- These precursors serve as building blocks for more complex metal clusters.
Purpose of the Study:
- To construct novel heterometallic silver(I)-copper(I) cluster complexes.
- To investigate the structural and photophysical properties of these new clusters.
- To explore the expansion of homonuclear clusters into heteronuclear ones.
Main Methods:
- Synthesis of tetranuclear supramolecular precursors [(R-C≡C-C≡C)Ag]4.
- Construction of heterometallic silver(I)-copper(I) cluster complexes (1-9) with CuAg3 cores.
- Investigation of structural features, including cupro-argentophilic interactions.
- Analysis of photophysical properties.
Main Results:
- A series of heterometallic silver(I)-copper(I) alkyl-1,3-diynyl cluster complexes (1-9) were successfully synthesized.
- The common CuAg3 core was observed, with trigonal-planar or pyramidal geometries stabilized by cupro-argentophilic interactions.
- The assembly process involves the accretion of additional silver(I) ions onto the CuAg3 template.
- Photophysical properties of precursors and selected complexes were investigated.
Conclusions:
- The study demonstrates the first reported conversion of a Group 11 homonuclear cluster into a heteronuclear one of higher nuclearity via inner-core expansion.
- The findings provide new insights into the assembly of medium-nuclearity clusters and the role of metal-metal interactions.
- The synthesized complexes offer potential for applications in materials science due to their unique structures and properties.
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