Abstract
Silver nanoparticles with an atomically precise molecular formula [Ag25(SR)18]¯ (‒SR: thiolate) are synthesized and their single-crystal structure is determined. This synthesized nanocluster is the only silver nanoparticle that has a virtually identical analogue in gold, i.e., [Au25(SR)18]¯, in terms of number of metal atoms, ligand count, super-atom electronic configuration, and atomic arrangement. Furthermore, both [Ag25(SR)18]¯ and its gold analogue share a number of features in their optical absorption spectra. This unprecedented molecular synthesis in silver to mimic gold offers the first model nanoparticle platform to investigate the centuries-old problem of understanding the fundamental differences between silver and gold in terms of nobility, catalytic activity, and optical property.
Original language | English (US) |
---|---|
Pages (from-to) | 11578-11581 |
Number of pages | 4 |
Journal | Journal of the American Chemical Society |
Volume | 137 |
Issue number | 36 |
DOIs | |
State | Published - Sep 8 2015 |
Fingerprint
Dive into the research topics of '[Ag25(SR)18]¯: The ‘Golden’ Silver Nanoparticle'. Together they form a unique fingerprint.Datasets
-
CCDC 1428877: Experimental Crystal Structure Determination : tetraphenylphosphonium octadecakis(mu-2,4-dimethylbenzenethiolato)-pentacosa-silver n-hexane dichloromethane solvate
Joshi, C. P. (Creator), Bootharaju, M. S. (Creator), Alhilaly, M. J. (Creator), Bakr, O. (Creator) & Alhilaly, M. J. (Creator), Cambridge Crystallographic Data Centre, Sep 30 2015
DOI: 10.5517/cc1jyvt4, http://hdl.handle.net/10754/624474
Dataset