Muramatsu Hisanori, Kambe Tetsuya, Tsukamoto Takamasa, Imaoka Takane, Yamamoto Kimihisa
Laboratory of Chemistry and Life Science (CLS), Tokyo Institute of Technology, Yokohama 226-8503, Japan.
JST-ERATO, Yamamoto Atom Hybrid Project, Tokyo Institute of Technology, Yokohama 226-8503, Japan.
Molecules. 2022 May 25;27(11):3398. doi: 10.3390/molecules27113398.
Superatoms are promising materials for their potential in elemental substitution and as new building blocks. Thus far, various synthesis methods of thiol-protected Au clusters including an Au superatom have been investigated. However, previously reported methods were mainly depending on the thermodynamic stability of the aimed clusters. In this report, a synthesis method for thiol-protected Au clusters using a dendrimers template is proposed. In this method, the number of Au atoms was controlled by the stepwise complexation feature of a phenylazomethine dendrimer. Therefore, synthesis speed was increased compared with the case without the dendrimer template. Hybridization for the Au superatoms was also achieved using the complexation control of metals.
超原子作为有潜力进行元素替代并成为新型结构单元的材料，前景广阔。迄今为止，人们已经研究了包括金超原子在内的多种硫醇保护金团簇的合成方法。然而，先前报道的方法主要依赖于目标团簇的热力学稳定性。在本报告中，我们提出了一种使用树枝状大分子模板合成硫醇保护金团簇的方法。在该方法中，通过苯甲亚胺树枝状大分子的逐步络合特性来控制金原子的数量。因此，与没有树枝状大分子模板的情况相比，合成速度有所提高。利用金属的络合控制，还实现了金超原子的杂交。
