Co13O8—metalloxocubes:a new class of perovskite-like neutral clusters with cubic aromaticity
Co13O8—metalloxocubes:a new class of perovskite-like neutral clusters with cubic aromaticity作者机构:Beijing National Laboratory for Molecular Sciences (BNLMS) State Key Laboratory for Structural Chemistry of Unstable and Stable Species Institute of Chemistry Chinese Academy of Sciences School of Physics Shandong University School of Advanced Materials Peking University Shenzhen Graduate School Department of Chemistry Southern University of Science and Technology University of Chinese Academy of Sciences School of Physics and Electrical Engineering Kashi University College of Science Beijing Jiaotong University Department of Chemistry and Key Laboratory of Organic Optoelectronics and Molecular Engineering of Ministry of Education Tsinghua University
出 版 物:《National Science Review》 (国家科学评论(英文版))
年 卷 期:2021年第8卷第1期
页 面:89-97页
核心收录:
学科分类:081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学]
基 金:sponsored by the Guangdong Provincial Key Laboratory of Catalysis (2020B121201002) provided by the National Project Development of Advanced Scientific Instruments Based on Deep Ultraviolet Laser Source (Y31M0112C1) the National Natural Science Foundation of China (21722308, 21802146,91536105, 91645203 and 21590792) the National Key Research and Development Program of China (2016YFB0700600) the CAS Key Research Program of Frontier Sciences (QYZDBSSW-SLH024)
主 题:metalloxocube oxygen-passivated metal cluster cubic aromaticity cluster materials magnetic property
摘 要:Exploring stable clusters to understand structural evolution from atoms to macroscopic matter and to construct new materials is interesting yet challenging in chemistry. Utilizing our newly developed deep-ultraviolet laser ionization mass spectrometry technique, here we observe the reactions of neutral cobalt clusters with oxygen and find a very stable cluster species of Co13O8that dominates the mass distribution in the presence of a large flow rate of oxygen gas. The results of global-minimum structural search reveal a unique cubic structure and distinctive stability of the neutral Co13O8cluster that forms a new class of metal oxides that we named as ‘metalloxocubes’. Thermodynamics and kinetics calculations illustrate the structural evolution from icosahedral Co13to the metalloxocube Co13O8with decreased energy, enhanced stability and aromaticity. This class of neutral oxygen-passivated metal clusters may be an ideal candidate for genetic materials because of the cubic nature of the building blocks and the stability due to cubic aromaticity.