Photocatalytic CO2 Reduction Mediated by Electron Transfer via the Excited Triplet State of Zn(II) Porphyrin: Difference between revisions
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====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 CO under visible-light catalysis using | The article contains results for the reduction of CO<sub>2</sub> to CO under visible-light catalysis using {{#moleculelink:|link=LYVLANYMDXKDOV-CVVGJFHCSA-M|image=false|width=300|height=200}} as a catalyst and photosensitizer. The catalytic system performs best (referring to the TON of CO production) in DMA. | ||
====Catalyst and Photosensitizer==== | ====Catalyst and Photosensitizer==== | ||
<chemform smiles="C1C2=C(C3C=CC(C(C)(C)C)=CC=3)C3N4[Zn]56~N7=C(C(C8C=CC9C=CC%10C=CC=N%11~[Re](~[C-]#[O+])(~[C-]#[O+])(~[C-]#[O+])(Br)~N=8C=9C=%10%11)=C8N5C(=C(C5C=CC(C(C)(C)C)=CC=5)C(=N2~6)C=1)C=C8)C=CC7=C(C1C=CC(C(C)(C)C)=CC=1)C4=CC=3" inchi="1S/C62H54N6.3CO.BrH.Re.Zn/c1-60(2,3)42-21-14-37(15-22-42)54-45-28-30-47(64-45)55(38-16-23-43(24-17-38)61(4,5)6)49-32-34-51(66-49)57(53-27-20-41-13-12-40-11-10-36-63-58(40)59(41)68-53)52-35-33-50(67-52)56(48-31-29-46(54)65-48)39-18-25-44(26-19-39)62(7,8)9;3*1-2;;;/h10-36H,1-9H3;;;;1H;;/q-2;;;;;+1;+2/p-1/b54-45-,54-46-,55-47-,55-49-,56-48-,56-50-,57-51+,57-52+;;;;;;" inchikey="LYVLANYMDXKDOV-CVVGJFHCSA-M" height="200px" width="300px" float="none"> | <chemform smiles="C1C2=C(C3C=CC(C(C)(C)C)=CC=3)C3N4[Zn]56~N7=C(C(C8C=CC9C=CC%10C=CC=N%11~[Re](~[C-]#[O+])(~[C-]#[O+])(~[C-]#[O+])(Br)~N=8C=9C=%10%11)=C8N5C(=C(C5C=CC(C(C)(C)C)=CC=5)C(=N2~6)C=1)C=C8)C=CC7=C(C1C=CC(C(C)(C)C)=CC=1)C4=CC=3" inchi="1S/C62H54N6.3CO.BrH.Re.Zn/c1-60(2,3)42-21-14-37(15-22-42)54-45-28-30-47(64-45)55(38-16-23-43(24-17-38)61(4,5)6)49-32-34-51(66-49)57(53-27-20-41-13-12-40-11-10-36-63-58(40)59(41)68-53)52-35-33-50(67-52)56(48-31-29-46(54)65-48)39-18-25-44(26-19-39)62(7,8)9;3*1-2;;;/h10-36H,1-9H3;;;;1H;;/q-2;;;;;+1;+2/p-1/b54-45-,54-46-,55-47-,55-49-,56-48-,56-50-,57-51+,57-52+;;;;;;" inchikey="LYVLANYMDXKDOV-CVVGJFHCSA-M" height="200px" width="300px" float="none"> | ||
Revision as of 12:29, 15 May 2024
Abstract
Summary
A photochemical reduction of CO2 to CO was shown using the zinc porphyrin dyad with a connected rhenium complex (Zn(tBuPP))-(Re(Phen)Br(CO)3) as a combined catalyst and photosensitizer molecule. Turnover numbers (TONs) of >1300 and a selectivity of >99.9% for CO were reached in DMA. The experiments were conducted under visible-light irradiation (λ = 420 nm) using BIH as sacrificial electron donor (see section SEDs below).
Advances and special progress
A selective method for the reduction of CO2 to CO with a porphyrin-rhenium complex dyad was presented, effectively linking the catalyst and photosensitizer in one molecule.
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 (Zn(tBuPP))-(Re(Phen)Br(CO)3) as a catalyst and photosensitizer. The catalytic system performs best (referring to the TON of CO production) in DMA.
Catalyst and Photosensitizer
Investigation
Sacrificial electron donor
In this study, the experiments were done with the sacrificial electron donor BIH BIH.
Additives
In this study, phenol was used as an additive.
Investigations
- photocatalytic CO2 conversion (Molecular process, Photocatalytic CO2 conversion experiments)
