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Issue 14, 2014
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Solvation chemistry of water-soluble thiol-protected gold nanocluster Au102 from DOSY NMR spectroscopy and DFT calculations

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Abstract

The hydrodynamic diameter of Aum(pMBA)n [(m, n) = (102, 44) and (144, 60)] clusters in aqueous media was determined via DOSY NMR spectroscopy. The apparent size of the same (n, m) cluster depends on the counter ion of the deprotonated pMBA ligand as explained by the competing ion-pair strength and hydrogen bonding interactions studied in DFT calculations. The choice of the counter ion affects the surface chemistry and molecular structure at the organic/water interface, which is relevant for biological applications.

Graphical abstract: Solvation chemistry of water-soluble thiol-protected gold nanocluster Au102 from DOSY NMR spectroscopy and DFT calculations

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The article was received on 07 Mar 2014, accepted on 06 May 2014 and first published on 08 May 2014


Article type: Communication
DOI: 10.1039/C4NR01255K
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Citation: Nanoscale, 2014,6, 7823-7826
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    Solvation chemistry of water-soluble thiol-protected gold nanocluster Au102 from DOSY NMR spectroscopy and DFT calculations

    K. Salorinne, T. Lahtinen, S. Malola, J. Koivisto and H. Häkkinen, Nanoscale, 2014, 6, 7823
    DOI: 10.1039/C4NR01255K

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