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Issue 43, 2017
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Multi-ligand-directed synthesis of chiral silver nanoclusters

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Abstract

Engineering the surface ligands of metal nanoclusters is critical for tuning their sizes, structures and properties at the atomic level. Herein, we report the synthesis and total structure determination of [Ag32(Dppm)5(SAdm)13Cl8]3+ and [Ag45(Dppm)4(S-But)16Br12]3+ (where Dppm = bis(diphenyphosphino)methane, HSAdm = 1-adamantanethiol and HS-But = tert-butyl mercaptan). The compositions of these two silver nanoclusters are determined by single-crystal X-ray diffraction (SC-XRD) and X-ray photoelectron spectroscopy (XPS), respectively. Remarkably, the asymmetric distribution of the three types of ligands (thiolate, phosphine, and halogen) on the cluster surface is responsible for the chirality of the clusters. It is worth noting that these findings demonstrate the key principles of ligand-shell anchoring for the tri-ligand protected silver clusters. Our work will offer further insights into the synthesis of chiral metal clusters by tailoring the surface ligands.

Graphical abstract: Multi-ligand-directed synthesis of chiral silver nanoclusters

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Article information


Submitted
25 Aug 2017
Accepted
27 Sep 2017
First published
28 Sep 2017

Nanoscale, 2017,9, 16800-16805
Article type
Paper

Multi-ligand-directed synthesis of chiral silver nanoclusters

X. Zou, S. Jin, W. Du, Y. Li, P. Li, S. Wang and M. Zhu, Nanoscale, 2017, 9, 16800
DOI: 10.1039/C7NR06338E

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