Synthesis and Characterization of Cobalt(II) N,N′-Diphenylazodioxide Complexes
| Autor: | Kylin A. Emhoff, Teya S. Eshelman, W. Christopher Boyd, Wiley J. Youngs, Michael A. DeBord, Philipp Sikatzki, Sydney R. Simpson, Matthew J. Panzner, Haitham Kalil, Michael L. Stromyer, Lakshmi Balaraman, Ahmed M.H. Salem, James R. Beemiller |
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| Rok vydání: | 2018 |
| Předmět: |
010405 organic chemistry
General Chemical Engineering Coordination number chemistry.chemical_element General Chemistry 010402 general chemistry Trigonal prismatic molecular geometry 01 natural sciences Chloride Article 0104 chemical sciences d electron count lcsh:Chemistry Nitrosobenzene Metal chemistry.chemical_compound Crystallography lcsh:QD1-999 chemistry visual_art visual_art.visual_art_medium medicine Acetonitrile Cobalt medicine.drug |
| Zdroj: | ACS Omega ACS Omega, Vol 3, Iss 11, Pp 16021-16027 (2018) |
| ISSN: | 2470-1343 |
| DOI: | 10.1021/acsomega.8b01200 |
| Popis: | Removal of chloride from CoCl2 with TlPF6 in acetonitrile, followed by addition of excess nitrosobenzene, yielded the eight-coordinate cobalt(II) complex salt [Co{Ph(O)NN(O)Ph}4](PF6)2, shown by single-crystal X-ray analysis to have a distorted tetragonal geometry. The analogous treatment of the bipyridyl complex Co(bpy)Cl2 yielded the mixed-ligand cobalt(II) complex salt [Co(bpy){Ph(O)NN(O)Ph}2](PF6)2, whose single-crystal X-ray structure displays a trigonal prismatic geometry, similar to that of the iron(II) cation in the previously known complex salt [Fe{Ph(O)NN(O)Ph}3](FeCl4)2. The use of TlPF6 to generate solvated metal complex cations from chloride salts or chlorido complexes, followed by the addition of nitrosobenzene, is shown to be a useful synthetic strategy for the preparation of azodioxide complex cations with the noncoordinating, diamagnetic PF6– counteranion. Coordination number appears to be more important than d electron count in determining the geometry and metal–ligand bond distances of diphenylazodioxide complexes. |
| Databáze: | OpenAIRE |
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