Multi-ligand-directed synthesis of chiral silver nanoclusters.
Multi-ligand-directed synthesis of chiral silver nanoclusters.
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DOI：
10.1039/c7nr06338e
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发表时间：
2017-11
期刊：
影响因子：
6.7
通讯作者：
Xuejuan Zou;Shan Jin;Wenjun Du;Yangfeng Li;Peng Li;Shuxin Wang;Manzhou Zhu
中科院分区：
文献类型：
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作者：
Xuejuan Zou;Shan Jin;Wenjun Du;Yangfeng Li;Peng Li;Shuxin Wang;Manzhou Zhu
设计金属纳米团簇的表面配体对于在原子水平上调节其尺寸、结构和性质至关重要。本文报道了[Ag_（32）（Dppm）_5（SAdm）_（13）Cl_8]~（3+）和[Ag_（45）（Dppm）_4（S-But）_（16）Br_（12）]~（3+）（其中Dppm =二（二苯基膦基）甲烷，HSAdm = 1-金刚烷乙烷，HS-But =叔丁基丁烷）的合成和结构测定。这两种银纳米团簇的组成分别通过单晶X射线衍射（SC-XRD）和X射线光电子能谱（XPS）进行了测定。值得注意的是，三种类型的配体（硫醇盐，膦和卤素）在簇表面上的不对称分布是负责的簇的手性。值得注意的是，这些发现证明了三配体保护的银簇的配体-壳层锚定的关键原理。我们的工作将提供进一步的见解，通过定制的表面配体的手性金属簇合物的合成。
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.