富银三金属 M 纳米团簇。

Homoleptic Silver-Rich Trimetallic M Nanocluster.

机构信息

Department of Chemistry, National Dong Hwa University, Hualien 974301, Taiwan, Republic of China.

Institute of Chemistry, Academia Sinica, Taipei 11528, Taiwan, Republic of China.

出版信息

Inorg Chem. 2022 May 9;61(18):6695-6700. doi: 10.1021/acs.inorgchem.1c04013. Epub 2022 Apr 25.

DOI:10.1021/acs.inorgchem.1c04013

PMID:35467348

Abstract

Two silver-rich M alloy nanoclusters (NCs), [CuAg{SP(OPr)}] () and [CuAuAg{SP(OPr)}] (), were synthesized and fully characterized by electrospray ionization mass spectrometry, NMR spectroscopy, and X-ray crystallography. Cluster , the first structurally characterized trimetallic M NC, was produced by doping one Au atom into a bimetallic M NC. Structural analyses showed the preferred positions of Group 11 metals in the yielded M NCs. Their antioxidation ability has been investigated, and the time-dependent UV-vis spectrum shows that the presence of Cu atoms in structures and can improve the antioxidant ability.

摘要

两个富含银的 M 合金纳米团簇（NCs），[CuAg{SP(OPr)}]（）和[CuAuAg{SP(OPr)}]（），通过电喷雾质谱、NMR 光谱和 X 射线晶体学进行了合成和全面表征。簇，第一个结构上表征的三金属 M NC，是通过将一个 Au 原子掺杂到双金属 M NC 中得到的。结构分析表明，在生成的 M NC 中，第 11 族金属的首选位置。研究了它们的抗氧化能力，时间相关的紫外可见光谱表明，结构和中的 Cu 原子的存在可以提高抗氧化能力。