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Issue 8, 2011
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(AuAg)144(SR)60 alloy nanomolecules

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Abstract

(Au-Ag)144(SR)60 alloy nanomolecules were synthesized and characterized by ESI mass spectrometry to atomic precision. The number of Ag atoms can be varied by changing the incoming metal ratio and plateaus at ∼60. UV-vis data demonstrates that the electronic structure of the nanomolecules can be tuned by incorporation of silver atoms. Based on the proposed 3-shell structure of Au144(SR)60, we hypothesize that the Ag atoms are selectively incorporated in to the symmetry equivalent 60-atom shell—having Au12, Au42, Ag60 concentric shells with 30 –SR–Au–SR– protecting units.

Graphical abstract: (AuAg)144(SR)60 alloy nanomolecules

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Publication details

The article was received on 28 Apr 2011, accepted on 23 May 2011 and first published on 13 Jul 2011


Article type: Communication
DOI: 10.1039/C1NR10429B
Citation: Nanoscale, 2011,3, 3064-3067
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    (AuAg)144(SR)60 alloy nanomolecules

    C. Kumara and A. Dass, Nanoscale, 2011, 3, 3064
    DOI: 10.1039/C1NR10429B

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