Evidence against OH Radical Formation during Photocatalyzed Reduction of Manganese(III) in K2 [Mn(III)-2-α-hydroxyethyl-isochlorin e4]acetate in Oxygen Free Aqueous Alkaline Solutions
- The hypothesis of GLIKMAN and ZABRODA (Biochemistry [USSR] 84,, 239 [1969]) that the primary electron donor during photoreduction of manganese(III) in Mn(III)-hydroxychlorin compounds in oxygen free aqueous alkaline solutions is the axially bound OH- ion was tested with Mn(III)-2-a-hydroxyethyl-isochlorin e4. It has been shown that 1) the primary generation of OH radicals upon irradiation of the complex is highly improbable, 2) light is not essential for the reduction reaction, 3) the kinetics of photoreduction of the Mn(III)-compound in 2 N NaOH clearly is not compatible with OH radical formation.
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| Author: | Gerhard Vierke, Manfred Müller |
|---|---|
| URN: | urn:nbn:de:hebis:30:3-761690 |
| DOI: | https://doi.org/10.1515/znb-1976-0621 |
| 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: | English |
| Date of Publication (online): | 2014/06/02 |
| Year of first Publication: | 1976 |
| Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
| Release Date: | 2023/12/29 |
| Tag: | Kinetics; Mn(III)-Chlorin; OH Radical; Photoreduction |
| Volume: | 31.1976 |
| Issue: | 6 |
| Page Number: | 4 |
| First Page: | 816 |
| Last Page: | 819 |
| HeBIS-PPN: | 517670070 |
| 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 |
