Abstract
A systematic exploration of the growth of Au clusters has revealed a critical size for the formation of stable assemblies. Mass-spectrometric measurements of clusters, as grown in the presence of an excess of weakly binding long-chain n-alkylthiol(ate) groups, show high yields of new compounds with core masses near the 15k minimum (≈ 75 Au atoms; k = 103 amu), and also at 23k, and 29k. Structural analyses establish their cores as compact metal nanocrystals of the corresponding effective diameters (1.4 to 1.7 nm), probably of decahedral close-packing and morphology. The precise identities of this sequence of special structures can now be sought.
Original language | English (US) |
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Pages (from-to) | 91-98 |
Number of pages | 8 |
Journal | Chemical Physics Letters |
Volume | 266 |
Issue number | 1-2 |
DOIs | |
State | Published - Feb 21 1997 |
Externally published | Yes |
ASJC Scopus subject areas
- General Physics and Astronomy
- Physical and Theoretical Chemistry