Nickel(II) pincer complexes demonstrate that the remote substituent controls catalytic carbon dioxide reduction: Difference between revisions
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===Abstract=== | ===Abstract=== | ||
====Summary==== | ====Summary==== | ||
A photochemical reduction of CO<sub>2</sub> to | A photochemical reduction of CO<sub>2</sub> to CO was shown using the nickel complexes or as catalysts in combination with the iridium-based photosensitizer {{#moleculelink:|link=NSABRUJKERBGOU-UHFFFAOYSA-N|image=false|width=300|height=200}}. Turnover numbers (TONs) of 10.6 for CO with the cobalt complex {{#moleculelink:|link=UDPGSTPOVCEDJN-UHFFFAOYSA-L|image=false|width=300|height=200}} were reached in acetonitrile. The experiments were conducted under visible-light irradiation using BIH and TEA as sacrificial electron donors (see section SEDs below). | ||
====Advances and special progress==== | ====Advances and special progress==== | ||
====Additional remarks==== | ====Additional remarks==== | ||
===Content of the published article in detail=== | ===Content of the published article in detail=== | ||
The article contains results for the reduction of CO<sub>2</sub> to | The article contains results for the reduction of CO<sub>2</sub> to CO under visible-light catalysis using nickel complexes as catalysts. The catalytic system performs best (referring to the TON of CO production) in acetonitrile with the cobalt catalyst {{#moleculelink:|link=UDPGSTPOVCEDJN-UHFFFAOYSA-L|image=false|width=300|height=200}}. | ||
===Catalyst=== | ===Catalyst=== | ||
{{#moleculelink:|link=UDPGSTPOVCEDJN-UHFFFAOYSA-L|image=true}} | {{#moleculelink:|link=UDPGSTPOVCEDJN-UHFFFAOYSA-L|image=true}} | ||
Revision as of 15:09, 22 January 2024
Abstract
Summary
A photochemical reduction of CO2 to CO was shown using the nickel complexes or as catalysts in combination with the iridium-based photosensitizer Ir(ppy)3. Turnover numbers (TONs) of 10.6 for CO with the cobalt complex Ni(4O(-)py)-(MeNHC)2Cl were reached in acetonitrile. The experiments were conducted under visible-light irradiation using BIH and TEA as sacrificial electron donors (see section SEDs below).
Advances and special progress
Additional remarks
Content of the published article in detail
The article contains results for the reduction of CO2 to CO under visible-light catalysis using nickel complexes as catalysts. The catalytic system performs best (referring to the TON of CO production) in acetonitrile with the cobalt catalyst Ni(4O(-)py)-(MeNHC)2Cl.
Catalyst
Ni(4O(-)py)-(MeNHC)2Cl
[Ni(py)-(MeNHC)2(MeCN)][PF6]2
Photosensitizer
Investigation
Sacrificial Electron Donor
In this study, the experiments were done with the sacrificial electron donors BIH (BIH) and TEA (TEA).
Additives
In this study, TfOH was used as an additive.
Investigations
- Photocatalytic CO2 reduction under varied conditions (Molecular process, Photocatalytic CO2 conversion experiments)
