Miyajima Sayuri, Hossain Sakiat, Ikeda Ayaka, Kosaka Taiga, Kawawaki Tokuhisa, Niihori Yoshiki, Iwasa Takeshi, Taketsugu Tetsuya, Negishi Yuichi
Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan.
Research Institute for Science & Technology, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan.
Commun Chem. 2023 Mar 28;6(1):57. doi: 10.1038/s42004-023-00854-0.
Metal nanoclusters composed of noble elements such as gold (Au) or silver (Ag) are regarded as superatoms. In recent years, the understanding of the materials composed of superatoms, which are often called superatomic molecules, has gradually progressed for Au-based materials. However, there is still little information on Ag-based superatomic molecules. In the present study, we synthesise two di-superatomic molecules with Ag as the main constituent element and reveal the three essential conditions for the formation and isolation of a superatomic molecule comprising two AgM structures (M = Ag or other metal; x = number of M) connected by vertex sharing. The effects of the central atom and the type of bridging halogen on the electronic structure of the resulting superatomic molecule are also clarified in detail. These findings are expected to provide clear design guidelines for the creation of superatomic molecules with various properties and functions.
由金（Au）或银（Ag）等贵金属元素组成的金属纳米团簇被视为超原子。近年来，对于由超原子组成的材料（常被称为超原子分子），人们对金基材料的认识逐渐深入。然而，关于银基超原子分子的信息仍然很少。在本研究中，我们合成了两种以银为主要组成元素的双超原子分子，并揭示了通过顶点共享连接的两个AgM结构（M = Ag或其他金属；x = M的数量）组成的超原子分子形成和分离的三个基本条件。还详细阐明了中心原子和桥连卤素类型对所得超原子分子电子结构的影响。这些发现有望为创建具有各种性质和功能的超原子分子提供明确的设计指导。
