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From Small Metal Clusters to Molecular Nanoarchitectures with a Core–Shell Structure: The Synthesis, Redox Fingerprint, Theoretical Analysis, and Solid-State Structure of [Co38As12(CO)50]4–
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2022-06-22 , DOI: 10.1021/acs.inorgchem.2c00506 Roberto Della Pergola 1 , Luigi Garlaschelli 2 , Piero Macchi 3 , Irene Facchinetti 4 , Riccardo Ruffo 4 , Stefano Racioppi 2, 5 , Angelo Sironi 2
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2022-06-22 , DOI: 10.1021/acs.inorgchem.2c00506 Roberto Della Pergola 1 , Luigi Garlaschelli 2 , Piero Macchi 3 , Irene Facchinetti 4 , Riccardo Ruffo 4 , Stefano Racioppi 2, 5 , Angelo Sironi 2
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The cluster [Co38As12(CO)50]4– was obtained by pyrolysis of [Co6As(CO)16]−. The metal cage features a closed-packed core inside a Co/As shell that progressively deforms from a cubic face-centered symmetry. The redox and acid–base reactivities were determined by cyclic voltammetry and spectrophotometric titrations. The calculated electron density revealed the shell-constrained distribution of the atomic charges, induced by the presence of arsenic.
中文翻译：
从小金属团簇到具有核壳结构的分子纳米结构：[Co38As12(CO)50]4 的合成、氧化还原指纹图谱、理论分析和固态结构–
[Co 38 As 12 (CO) 50 ] 4–簇是通过[Co 6 As(CO) 16 ] −的热解获得的。金属笼的特点是 Co/As 壳内有一个密排芯，从立方面心对称逐渐变形。通过循环伏安法和分光光度滴定法测定氧化还原和酸碱反应性。计算出的电子密度揭示了由砷的存在引起的原子电荷的壳层约束分布。
更新日期：2022-06-22
中文翻译：
从小金属团簇到具有核壳结构的分子纳米结构：[Co38As12(CO)50]4 的合成、氧化还原指纹图谱、理论分析和固态结构–
[Co 38 As 12 (CO) 50 ] 4–簇是通过[Co 6 As(CO) 16 ] −的热解获得的。金属笼的特点是 Co/As 壳内有一个密排芯，从立方面心对称逐渐变形。通过循环伏安法和分光光度滴定法测定氧化还原和酸碱反应性。计算出的电子密度揭示了由砷的存在引起的原子电荷的壳层约束分布。
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