[Ag25(SR)18]¯: The ‘Golden’ Silver Nanoparticle

Chakra Prasad Joshi; Megalamane Siddaramappa Bootharaju; Mohammad Jaber Alhilaly; Osman Bakr

doi:10.1021/jacs.5b07088

[Ag25(SR)18]¯: The ‘Golden’ Silver Nanoparticle

Chakra Prasad Joshi, Megalamane Siddaramappa Bootharaju, Mohammad Jaber Alhilaly, Osman Bakr

Research output: Contribution to journal › Article › peer-review

480 Scopus citations

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	https://doi.org/10.1021/jacs.5b07088
State	Published - Sep 8 2015

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KAUST Repository Item: Exported on 2020-10-01

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10.1021/jacs.5b07088

https://repository.kaust.edu.sa/bitstream/10754/576875/1/jacs2E5b07088.pdf

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title = "[Ag25(SR)18]¯: The {\textquoteleft}Golden{\textquoteright} Silver Nanoparticle",

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.",

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AU - Joshi, Chakra Prasad

AU - Bootharaju, Megalamane Siddaramappa

AU - Alhilaly, Mohammad Jaber

AU - Bakr, Osman

N1 - KAUST Repository Item: Exported on 2020-10-01

PY - 2015/9/8

Y1 - 2015/9/8

N2 - 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.

AB - 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.

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[Ag25(SR)18]¯: The ‘Golden’ Silver Nanoparticle

Abstract

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CCDC 1428877: Experimental Crystal Structure Determination : tetraphenylphosphonium octadecakis(mu-2,4-dimethylbenzenethiolato)-pentacosa-silver n-hexane dichloromethane solvate

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[Ag25(SR)18]¯: The ‘Golden’ Silver Nanoparticle

Abstract

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Datasets

CCDC 1428877: Experimental Crystal Structure Determination : tetraphenylphosphonium octadecakis(mu-2,4-dimethylbenzenethiolato)-pentacosa-silver n-hexane dichloromethane solvate

Cite this