NDLI: Ligand control in thiol stabilized Au<sub>38</sub> clusters

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RSC Advances Vol - 2 Issue - 5

RSC Advances Vol - 2 Issue - 4

RSC Advances Vol -1

RSC Advances Vol -0

Ligand control in thiol stabilized Au₃₈ clusters

Content Provider	Royal Society of Chemistry (RSC)
Author	Kumar, Challa S. S. R. Weber, Andrew Bovenkamp, Gudrun Lisa Bitter, J. H. Stellwagen, Daniel Jin, Rongchao
Copyright Year	2012
Abstract	Alkyl thiols (CnH2n + 1SH) with chain lengths (n = 4, 6, 8, 12, 16) were investigated for etching the polydisperse Aun(SG)m mixture in order to obtain nearly monodisperse Au38(SR)24 clusters. FT-IR studies demonstrate that all thiol ligands bound to Au38 clusters are highly ordered and in an all-trans state. X-ray absorption studies at the S K-edge as well as at the Au L3 edge show similarities between Au(I)S species and Au38(SR)24 clusters, in good agreement with the ‘S-Au-S’ capping motifs in the Au38(SR)24 structure and confirming charge transfer from gold to sulfur atoms. We report for the first time the use of Wide-angle X-ray scattering (WAXS) analysis as a more reliable tool than TEM to evaluate particle size and size distributions Au38(SR)24 clusters.
Starting Page	2276
Ending Page	2283
Page Count	8
File Format	HTM / HTML PDF
ISSN	20462069
Volume Number	2
Issue Number	6
Journal	RSC Advances
DOI	10.1039/c2ra00747a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Dispersity Chemical milling Thiol Transmission electron microscopy K-edge Aun Fourier-transform infrared spectroscopy X-ray absorption spectroscopy Wide-angle X-ray scattering Sulfur WAXS
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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