Synthesis, Structure, Electrochemical, and Spectroscopic Properties of Hetero-Bimetallic Ru(II)/Fe(II)-Alkynyl Organometallic Complexes
| Autor: | Amit Sil, Utsav Ghosh, Vipin Kumar Mishra, Sabyashachi Mishra, Sanjib K. Patra |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
010405 organic chemistry
Chemistry Aryl Infrared spectroscopy chemistry.chemical_element 010402 general chemistry Electrochemistry 01 natural sciences Redox 0104 chemical sciences Ruthenium Inorganic Chemistry Metal Crystallography chemistry.chemical_compound visual_art visual_art.visual_art_medium Physical and Theoretical Chemistry Bimetallic strip Single crystal |
| Zdroj: | Inorganic chemistry. 58(2) |
| ISSN: | 1520-510X |
| Popis: | A series of heterobimetallic wire-like organometallic complexes [(tpy-C6H4-R)(PPh3)2Ru–C≡C–Fc]+ (tpy-C6H4-R = 4′-(aryl)-2,2′:6′,2′′-terpyridyl, Fc = [(η5-Cp)2Fe], R = -H, -Me, -F, -NMe2 in complexes 5–8, respectively) featuring ferrocenyl and 4′-(aryl)-2,2′:6′,2′′-terpyridyl ruthenium(II) complexes as redox active metal termini, have been synthesized. Various spectroscopic tools, such as multinuclear NMR, IR spectra, HRMS, CHN analyses, and single crystal X-ray crystallography have been utilized to characterize the heterobimetallic complexes. The electrochemical and UV–vis–NIR spectroscopic studies have been investigated to evaluate the electronic delocalization across the molecular backbones of the Ru(II)–Fe(II) heterobinuclear organometallic dyads. Electrochemical studies reveal two well-separated reversible redox waves as a result of successive oxidation of the ferrocenyl and Ru(II) redox centers. The spin density distribution analyses reveal that the initial oxidation process is associated with the Fe... |
| Databáze: | OpenAIRE |
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