Elektronentransfer und Ionenpaare, 15 [1–3]. Radikalanion und Radikal-Kontakt-Ionenpaare von Dimesityl-tetraketon
Electron ratnsfer and ion pairing, 15 [1-3]. Radical anion and radical ion pairs of dimesityl tetraketone
- The radical anion of dimesityltetraketone (ERed, I = -0.40 V) is easily generated in THF by potassium mirror/[2.2.2]-cryptand reduction. Its contact ion pairs with Na⊕, Cs⊕ and Ba⊕⊕ counter cations, prepared in THF solution by single electron transfer from the respective metals, are characterized by their ESR/ENDOR spectra, which exhibit temperature-dependent metal couplings of aNa⊕ = 0.061 mT (190 K), aCs⊕ = 0.021 mT (190 K), and aBa⊕⊕ = 0.145 mT (295 K).
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| Author: | Hans BockGND, Peter Hänel, Hans-Friedrich Herrmann |
|---|---|
| URN: | urn:nbn:de:hebis:30:3-803411 |
| DOI: | https://doi.org/10.1515/znb-1990-0815 |
| ISSN: | 1865-7117 |
| ISSN: | 0932-0776 |
| Parent Title (German): | Zeitschrift für Naturforschung, B |
| Publisher: | Verlag der Zeitschrift für Naturforschung |
| Place of publication: | Tübingen |
| Document Type: | Article |
| Language: | German |
| Date of Publication (online): | 2014/06/02 |
| Year of first Publication: | 1990 |
| Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
| Release Date: | 2024/01/25 |
| Tag: | Cyclic Voltammetry; ESR/ENDOR Spectra; Radical Contact Ion Pairs; Tetraketone Radical Anion |
| Volume: | 8.1990 |
| Issue: | 8 |
| Page Number: | 8 |
| First Page: | 1197 |
| Last Page: | 1204 |
| Institutes: | Biochemie, Chemie und Pharmazie / Biochemie und Chemie |
| Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 54 Chemie / 540 Chemie und zugeordnete Wissenschaften |
| Sammlungen: | Universitätspublikationen |
| Licence (German): |  Creative Commons - Namensnennung-Nicht kommerziell-Keine Bearbeitung 3.0 |
