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Issue 24, 2013
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Au103(SR)45, Au104(SR)45, Au104(SR)46 and Au105(SR)46 nanoclusters

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Abstract

High resolution ESI mass spectrometry of the “22 kDa” nanocluster reveals the presence of a mixture containing Au103(SR)45, Au104(SR)45, Au104(SR)46, and Au105(SR)46 nanoclusters, where R = –CH2CH2Ph. MALDI TOF MS data confirm the purity of the sample and a UV-vis spectrum shows minor features. Au102(SC6H5COOH)44, whose XRD crystal structure was recently reported, is not observed. This is due to ligand effects, because the 102 : 44 composition is produced using aromatic ligands. However, the 103-, 104- and 105-atom nanoclusters, protected by –SCH2CH2Ph and –SC6H13 ligands, are at or near 58 electron shell closing.

Graphical abstract: Au103(SR)45, Au104(SR)45, Au104(SR)46 and Au105(SR)46 nanoclusters

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Publication details

The article was received on 26 Jul 2013, accepted on 09 Sep 2013 and first published on 17 Oct 2013


Article type: Communication
DOI: 10.1039/C3NR03872F
Nanoscale, 2013,5, 12082-12085

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    Au103(SR)45, Au104(SR)45, Au104(SR)46 and Au105(SR)46 nanoclusters

    A. Dass, P. R. Nimmala, V. R. Jupally and N. Kothalawala, Nanoscale, 2013, 5, 12082
    DOI: 10.1039/C3NR03872F

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