JST-ERATO, Yamamoto Atom Hybrid Project, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama, 226-8503, Japan.
Laboratory for Chemistry and Life Science, Tokyo Institute of Technology, Yokohama, 226-8503, Japan.
Nat Commun. 2018 Sep 24;9(1):3873. doi: 10.1038/s41467-018-06422-8.
The chemistry of metal clusters on the sub-nanometer scale is not yet well understood because metal clusters, especially multimetallic clusters, are difficult to synthesize with control over size and composition. The template synthesis of multimetallic sub-nanoclusters is achieved using a phenylazomethine dendrimer as a macromolecular template. Its intramolecular potential gradient allows the precise uptake of metal precursor complexes containing up to eight elements on the template. The usefulness of this method is demonstrated by synthesizing multimetallic sub-nanoclusters composed of five elements (GaInAuBiSn). The size and composition of this cluster can be precisely controlled and the metals involved are alloyed with each other. This approach provides the ability to easily blend different metals in various combinations to create new materials on the sub-nanometer scale, which will lead to the development of a new area in the field of chemistry.
亚纳米尺度金属团簇的化学性质还没有被很好地理解，因为金属团簇，特别是多金属团簇，很难通过控制尺寸和组成来合成。多金属亚纳米团簇的模板合成是使用苯并亚甲基树枝状大分子作为大分子模板来实现的。其分子内的势能梯度允许在模板上精确地摄取多达八种元素的金属前体配合物。通过合成由五种元素（GaInAuBiSn）组成的多金属亚纳米团簇证明了这种方法的有用性。可以精确控制该团簇的尺寸和组成，并且所涉及的金属彼此合金化。这种方法提供了在亚纳米尺度上轻松混合不同金属的各种组合以创建新材料的能力，这将导致化学领域的一个新领域的发展。
