Birnthaler, Dominik and Narobe, Rok and Lopez-Berguno, Eliseo and Haag, Christoph and Koenig, Burkhard (2023) Synthetic Application of Bismuth LMCT Photocatalysis in Radical Coupling Reactions. ACS CATALYSIS, 13 (2). pp. 1125-1132. ISSN 2155-5435
Full text not available from this repository. (Request a copy)Abstract
Ligand-to-metal charge transfer (LMCT) photo-catalysis allows the activation and synthetic utilization of halides and other heteroatoms in metal complexes. Many metals are known to undergo LMCT but so far remain underutilized in the field of catalysis. A screening assay identifying LMCT activity helped us to expand this catalysis concept to the application of bismuth LMCT in organic radical coupling reactions. We demonstrate its application for the generation of two different radicals (chlorine and carboxyl) in net-oxidative as well as redox-neutral photochemical reactions. Detailed investigation of the model Giese-type coupling revealed BiCl4- and BiCl52- as catalytically active bismuth species under 385 nm irradiation. Combined cyclic voltammetry and UV-vis studies gave insight into the reactivity of the highly reactive bismuth(II) catalyst fragment.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | COORDINATION-COMPOUNDS; PHOTOCHEMISTRY; ACTIVATION; COMPLEXES; OXIDATION; POLYMERIZATION; ANTIMONY(III); REDUCTION; CHEMISTRY; LEAD(II); bismuth; high-throughput screening; homogeneous catalysis; photocatalysis; radicals |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Organische Chemie > Lehrstuhl Prof. Dr. Burkhard König |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 05 Mar 2024 08:47 |
| Last Modified: | 05 Mar 2024 08:47 |
| URI: | https://pred.uni-regensburg.de/id/eprint/59265 |
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