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Polyhedral {Ag12} and {Ag16} Clusters: Synthesis, Structural Characterization and Third-Order Nonlinear Optical
Hong-Ping Xie1,2, Xiao-Hang Jin1, Jun-Yi Li3
1College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, Jiangsu, 215123, China.
Chemistry, an Asian Journal
|May 22, 2024
Summary
Two novel silver-thiolate clusters, Ag16 and Ag12, were synthesized. These clusters exhibit unique polyhedral structures and show reverse saturable absorption, indicating potential for nonlinear optical applications.
Area of Science:
- Inorganic Chemistry
- Materials Science
- Nanotechnology
Background:
- Silver-thiolate clusters are of interest due to their unique structures and potential applications.
- Developing new synthetic strategies for complex silver-thiolate architectures is an ongoing challenge.
Purpose of the Study:
- To synthesize and characterize novel polyhedral silver-thiolate clusters.
- To investigate the structural diversity and nonlinear optical properties of these clusters.
Main Methods:
- Synthesis of silver-thiolate clusters using 4-(trimethylammonio)benzenethiolate (Tab) as a ligand.
- Structural characterization using X-ray crystallography.
- Third-order nonlinear optical measurements using 532 nm laser irradiation.
Main Results:
- Two clusters, [S@Ag16(Tab)10(MeCN)8](PF6)14 (Ag16) and [Ag12(Tab)6(DMF)12](PF6)12 (Ag12), were successfully synthesized.
- Ag16 exhibits a novel decahedral structure, while Ag12 adopts a cuboctahedron structure.
- Both clusters demonstrated reverse saturable absorption (RSA) in N,N-dimethylformamide (DMF).
Conclusions:
- The use of electroneutral Tab ligands facilitates the formation of complex silver-thiolate structures.
- The decahedral Ag16 cluster represents a new structural motif in silver-thiolate chemistry.
- The observed RSA properties suggest potential applications in optical limiting and other nonlinear optical devices.
Keywords:
polyhedronsilver-thiolate clustersthird-order nonlinear optical responsetrimethylammonium phenylthiolMore Related Videos
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