Synthesis, characterisation and redox properties of anti-bimetallic permethylpentalene complexes
| Autor: | Binding, SC, Green, JC, Turner, ZR, Buffet, J-C, O'Hare, D |
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| Rok vydání: | 2019 |
| Předmět: |
education.field_of_study
010405 organic chemistry Ligand Chemistry Population Nuclear magnetic resonance spectroscopy 010402 general chemistry 01 natural sciences Redox 0104 chemical sciences Inorganic Chemistry Crystallography Transition metal Triplet state Cyclic voltammetry education Bimetallic strip |
| Zdroj: | Dalton transactions (Cambridge, England : 2003). 48(13) |
| ISSN: | 1477-9234 |
| Popis: | We report a series of anti-bimetallic transition metal complexes based on the permethylpentanyl (Pn*, C8Me6) ligand: anti-(MCpR5)2Pn* (where M = Fe, Co and Ni and R = H or Me). Compounds (FeCp*)2Pn* (1), (CoCp*)2Pn* (2), (NiCp*)2Pn* (3), (CoCp)2Pn* (4) and (NiCp)2Pn* (5) were fully characterised by NMR spectroscopy, X-ray crystallography, DFT calculations and cyclic voltammetry. All anti-(MCpR5)Pn* structures have diamagnetic ground states. 1, 2 and 4 have isolated non-degenerate ground states with closed shell configurations. A study of the magnetic properties of the dinickel complexes 3 and 5 reveal Boltzmann population of a Curie triplet state in the solution. Cyclic voltammetry reveals multiple reversible or quasi-reversible redox couples for all the dinuclear complexes. |
| Databáze: | OpenAIRE |
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