Fink, Daniel and Bodensteiner, Michael and Linseis, Michael and Winter, Rainer F. (2018) Macrocyclic Triruthenium Complexes Having Electronically Coupled Mixed-Valent States. CHEMISTRY-A EUROPEAN JOURNAL, 24 (4). pp. 992-996. ISSN 0947-6539, 1521-3765
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5-Ethynyl-2-furancarboxylic acid and 3-ethynylbenzoic acid self-assemble with [HRu(CO)Cl(PiPr(3))(2)] to form macrocyclic C-3-symmetric triangular triruthenium alkenyl complexes [{Ru(CO)(PiPr(3))(2)(CH=CHArCOO)}(3)] (Ar=C6H4: 1-B, Ar=C4H2O: 1-F), which were characterized by multinuclear NMR spectroscopy, high-resolution ESI mass spectrometry, and, in the case of 1-B, by X-ray crystallography. Electrochemical studies indicate that the macrocycles are oxidized in three consecutive one-electron steps. The mixed-valent states obtained by electrochemical or chemical oxidation show signs of valence delocalization, which makes these complexes rare examples of molecule-based conductive loops with through-bond charge delocalization.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | MOLECULAR RECTANGLES; LIGAND; SYSTEMS; EXAMPLES; FERROCENE; MOTIFS; density functional calculations; electrochemistry; macrocycles; mixed-valent compounds; ruthenium |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Central Analytical Services |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 24 Mar 2020 08:07 |
| Last Modified: | 24 Mar 2020 08:07 |
| URI: | https://pred.uni-regensburg.de/id/eprint/15188 |
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