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- Title
Au<sub>57</sub>Ag<sub>53</sub>(C≡CPh)<sub>40</sub>Br<sub>12</sub>: A Large Nanocluster with <italic>C</italic><sub>1</sub> Symmetry.
- Authors
Guan, Zong‐Jie; Zeng, Jiu‐Lian; Yuan, Shang‐Fu; Hu, Feng; Lin, Yu‐Mei; Wang, Quan‐Ming
- Abstract
Abstract: The controlled synthesis and structure determination of a bimetallic nanocluster Au57Ag53(C≡CPh)40Br12 (Au57Ag53) is presented. The metal core has a four‐shell Au2M3@Au34@Ag51 @Au20 (M=1/3 Au+2/3 Ag) architecture. In contrast to the previously reported large nanoclusters that have highly symmetric kernel structures, the metal atoms in Au57Ag53 are arranged in an irregular manner with C1 symmetry. This cluster exhibits excellent thermal stability and is robust under oxidative or basic conditions. The silver precursors play a key role in dictating the structures of the nanoclusters, which suggests the importance of the counteranions used.
- Subjects
NANOSTRUCTURED materials; GOLD compounds; OXIDATION; CHEMICAL precursors; THERMAL stability
- Publication
Angewandte Chemie, 2018, Vol 130, Issue 20, p5805
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201801261