Au25集群高压状态

IF 7.2 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Chemistry of Materials Pub Date : 2025-05-22 DOI:10.1021/acs.chemmater.5c00755

Camino Martín-Sánchez, Khadijetou Ahmed Ethmane, Abolfazl Ziarati, Daniele Rosa-Gastaldo, Michal Swierczewski, Arnulf Rosspeintner, Thomas Bürgi

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引用次数: 0

摘要

在本工作中，结合紫外-可见吸收和拉曼光谱研究了压力对中性和带负电荷的Au25(SR)18团簇的电子、振动和结构性质的影响。研究表明，在0-15 GPa范围内，Au25(SR)18团簇经历了三次结构转变，分别位于0.8、6和11 GPa附近。结果表明，这些相变是M25(SR)18结构固有的，与加压条件、配体类型和电荷状态无关。所报道的拉曼测量结果表明，振动光谱是在压力作用下跟踪原子精度金属纳米团簇结构的有力工具。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

High-Pressure States of the Au25 Cluster

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High-Pressure States of the Au25 Cluster

In the present work, the effects of pressure on the electronic, vibrational, and structural properties of neutral and negatively charged Au₂₅(SR)₁₈ clusters are investigated up to 15 GPa combining UV–vis absorption and Raman spectroscopy. We show that Au₂₅(SR)₁₈ clusters undergo three structural transitions in the 0–15 GPa range located at around 0.8, 6, and 11 GPa. Results indicate that these phase transitions are intrinsic to the M₂₅(SR)₁₈ structure and independent of the pressurization conditions, type of ligand, and charge state. The reported Raman measurements show that vibrational spectroscopy is a powerful tool for structural tracking of atomically precise metal nanoclusters under the application of pressure.

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来源期刊

Chemistry of Materials 工程技术-材料科学：综合

CiteScore

14.10

自引率

5.80%

发文量

929

审稿时长

1.5 months

期刊介绍： The journal Chemistry of Materials focuses on publishing original research at the intersection of materials science and chemistry. The studies published in the journal involve chemistry as a prominent component and explore topics such as the design, synthesis, characterization, processing, understanding, and application of functional or potentially functional materials. The journal covers various areas of interest, including inorganic and organic solid-state chemistry, nanomaterials, biomaterials, thin films and polymers, and composite/hybrid materials. The journal particularly seeks papers that highlight the creation or development of innovative materials with novel optical, electrical, magnetic, catalytic, or mechanical properties. It is essential that manuscripts on these topics have a primary focus on the chemistry of materials and represent a significant advancement compared to prior research. Before external reviews are sought, submitted manuscripts undergo a review process by a minimum of two editors to ensure their appropriateness for the journal and the presence of sufficient evidence of a significant advance that will be of broad interest to the materials chemistry community.