Atomically size-selected gold (Au) clusters protected by organic ligands or stabilized by polymers provide an ideal platform to test fundamental concepts and size-specific phenomena, such as the superatomic concept and metal-to-nonmetal transition. Recent studies revealed that these stabilized Au clusters take atomlike quantized electronic structures and can be viewed as chemically modified Au superatoms. An analogy between Au and hydrogen (H) atoms is an interesting proposal made for bare Au clusters: a Au atom at a low-coordination site of a Au cluster can be replaced with a H atom while retaining the structural motif and electronic structure. However, this proposal has not been experimentally proved in chemically modified Au superatoms while a recent theoretical study predicted the formation of [HAu₂₅(SR)₁₈]⁰ (RS = thiolate).

中文翻译：

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化学修饰的金基超原子的氢化物掺杂

原子尺寸选择的金（Au）簇受有机配体保护或由聚合物稳定，提供了一个理想的平台来测试基本概念和特定于尺寸的现象，例如超原子概念和金属到非金属的过渡。最近的研究表明，这些稳定的金簇具有原子状的量化电子结构，可以看作是化学修饰的金超原子。Au和氢（H）原子之间的类比是针对裸Au簇的有趣提议：在Au簇的低配位位处的Au原子可以被H原子取代，同时保留结构基序和电子结构。但是，该提议尚未在化学修饰的Au超级原子中得到实验证明，而最近的理论研究预测了[HAu ₂₅（SR）的形成₁₈ ] ⁰（RS =硫醇盐）。