Heterotrimetallic Mixed‐Valent Molecular Precursors Containing Periodic Table Neighbors: Assignment of Metal Positions and Oxidation States
| Autor: | Jesse C. Carozza, Melisa Alkan, Yuxuan Zhang, Zheng Wei, Andrey Yu. Rogachev, Alexander S. Filatov, Yu-Sheng Chen, Haixiang Han, Evgeny V. Dikarev, Audra P. Colliton |
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| Rok vydání: | 2020 |
| Předmět: |
Diffraction
Materials science 010405 organic chemistry Oxide chemistry.chemical_element General Chemistry 010402 general chemistry Crystal engineering 01 natural sciences Catalysis 0104 chemical sciences Metal Crystallography chemistry.chemical_compound Transition metal chemistry visual_art X-ray crystallography visual_art.visual_art_medium Molecule Cobalt |
| Zdroj: | Angewandte Chemie International Edition. 59:9624-9630 |
| ISSN: | 1521-3773 1433-7851 |
| Popis: | A known trinuclear structure was used to design the heterobimetallic mixed-valent, mixed-ligand molecule [CoII (hfac)3 -Na-CoIII (acac)3 ] (1). This was used as a template structure to develop heterotrimetallic molecules [CoII (hfac)3 -Na-FeIII (acac)3 ] (2) and [NiII (hfac)3 -Na-CoIII (acac)3 ] (3) via isovalent site-specific substitution at either of the cobalt positions. Diffraction methods, synchrotron resonant diffraction, and multiple-wavelength anomalous diffraction were applied beyond simple structural investigation to provide an unambiguous assignment of the positions and oxidation states for the periodic table neighbors in the heterometallic assemblies. Molecules of 2 and 3 are true heterotrimetallic rather than a statistical mixture of two heterobimetallic counterparts. Trinuclear platform 1 exhibits flexibility in accommodating a variety of di- and trivalent metals, which can be further utilized in the design of molecular precursors for the NaMM'O4 functional oxide materials. |
| Databáze: | OpenAIRE |
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