The Magic Au60 Nanocluster: A New Cluster-Assembled Material with Five Au13 Building Blocks
The Magic Au60 Nanocluster: A New Cluster-Assembled Material with Five Au13 Building Blocks
复制标题
神奇的 Au-60 纳米团簇：一种具有五个 Au-13 构建块的新型团簇组装材料
DOI：
10.1002/anie.201501830
复制
发表时间：
2015-07-13
影响因子：
16.6
通讯作者：
Zhu, Manzhou
中科院分区：
文献类型：
--
作者：
Song, Yongbo;Fu, Fangyu;Zhu, Manzhou
本文报道了[Au_（60）Se_2（Ph_3P）（10）（SeR）（15）]（+）的合成和原子结构。来自具有Au-Se-Au键合的封闭金环的五个二十面体Au-13构建块。有趣的是，两个Se原子（没有苯基尾）位于团簇的中心，通过Se-（Au）（5）相互作用稳定。这种环状的金纳米团簇结构在以往的实验和理论研究中都是前所未有的。此外，光学和电化学研究表明，在五孪晶Au-60纳米团簇中，二十面体Au-13单元的电子性质基本保持不变，这种新材料可能是一种很有前途的光限幅材料。这一工作为深入理解控制团簇组装材料以定制其功能提供了基础。
Herein, we report the synthesis and atomic structure of the cluster-assembled [Au60Se2(Ph3P)(10)(SeR)(15)](+) material. Five icosahedral Au-13 building blocks from a closed gold ring with Au-Se-Au linkages. Interestingly, two Se atoms (without the phenyl tail) locate in the center of the cluster, stabilized by the Se-(Au)(5) interactions. The ring-like nanocluster is unprecedented in previous experimental and theoretical studies of gold nanocluster structures. In addition, our optical and electrochemical studies show that the electronic properties of the icosahedral Au-13 units still remain unchanged in the penta-twinned Au-60 nanocluster, and this new material might be a promising in optical limiting material. This work offers a basis for deep understanding on controlling the cluster-assembled materials for tailoring their functionalities.