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单与单AU25纳米集群的化

Chuanhao Yao¹, Yue-jian Lin², Jinyun Yuan³

¹Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanostructures, Institute of Solid State Physics, Chinese Academy of Sciences , Hefei, Anhui 230031, China.

Journal of the American Chemical Society

|November 24, 2015

概括

这项研究在金纳米集群 (Au25) 中实现了单兴奋剂,揭示了独特的内替代. 这种添加的金纳米粒子 (Au24Cd) 与添加不同,并且具有特定的转化特性.

科学领域:

纳米材料科学
无机化学
计算化学

背景情况:

控制金属纳米集群中的剂特性是必不可少的,但很难.
兴奋剂会影响纳米集群的特性和应用.
之前的兴奋剂研究通常集中在外替代上.

研究的目的:

在金纳米集群 (Au25) 中实现和表征单兴奋剂.
阐明替代的确切位置和机制.
为了比较和等其他剂.

主要方法:

用单添加Au25纳米集群的合成.
用X射线结晶学进行结构测定.
理论计算以了解兴奋剂机制.

主要成果:

成功合成了单添加Au25纳米集群 (Au24Cd).
通过X射线结晶学发现CD取代了内部的黄金原子.
兴奋剂不同于兴奋剂 (外替换).
Au24Cd很容易转化为Au24Hg,但不是反过来.

结论:

在金纳米集群中实现精确的兴奋剂控制.
展示了使用的新型内兴奋剂策略.
突出了不同兴奋剂的不同兴奋剂行为和转化途径.

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