Photocatalytic CO2 Reduction Using a Robust Multifunctional Iridium Complex toward the Selective Formation of Formic Acid: Difference between revisions
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[[Category:Photocatalytic CO2 conversion to HCOOH]] | [[Category:Photocatalytic CO2 conversion to HCOOH]] | ||
{{BaseTemplate}} | {{BaseTemplate}} | ||
===Abstract=== | |||
====Summary==== | |||
A photochemical reduction of CO<sub>2</sub> to formic acid and CO was shown using the iridium complex {{#moleculelink:|link=BEUJVGCRFICSDD-UHFFFAOYSA-M|image=false|width=300|height=200}} as a catalyst without any additional photosensitizer. Turnover numbers (TONs) of 2080 for formic acid and a selectivity of 87% for formic acid were reached in dimethylacetamide. The experiments were conducted under visible-light irradiation (λ > 400 nm) using BIH as sacrificial electron donor (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 CO<sub>2</sub> to CO and formic acid under visible-light catalysis using an iridium complex. The catalytic system performs best (referring to the TON of formic acid production) in dimethylacetamide. | |||
====Catalyst==== | ====Catalyst==== | ||
<chemform smiles="C(C1C(C)=CC(C)=CC=1C)1C=C2CP([Ir+3]([H-])([Cl-])34P(C5CCCCC5)(C5CCCCC5)CC5C=C(C6C(C)=CC(C)=CC=6C)C=C(C(C=1)=N23)N=54)(C1CCCCC1)C1CCCCC1.[B-](C1C=CC=CC=1)(C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1" inchi="1S/C54H74N2P2.C24H20B.ClH.Ir.H/c1-37-27-39(3)53(40(4)28-37)43-31-45(35-57(47-19-11-7-12-20-47)48-21-13-8-14-22-48)55-51(33-43)52-34-44(54-41(5)29-38(2)30-42(54)6)32-46(56-52)36-58(49-23-15-9-16-24-49)50-25-17-10-18-26-50;1-5-13-21(14-6-1)25(22-15-7-2-8-16-22,23-17-9-3-10-18-23)24-19-11-4-12-20-24;;;/h27-34,47-50H,7-26,35-36H2,1-6H3;1-20H;1H;;/q;-1;;+3;-1/p-1" inchikey="BEUJVGCRFICSDD-UHFFFAOYSA-M" height="200px" width="300px" float="none"> | <chemform smiles="C(C1C(C)=CC(C)=CC=1C)1C=C2CP([Ir+3]([H-])([Cl-])34P(C5CCCCC5)(C5CCCCC5)CC5C=C(C6C(C)=CC(C)=CC=6C)C=C(C(C=1)=N23)N=54)(C1CCCCC1)C1CCCCC1.[B-](C1C=CC=CC=1)(C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1" inchi="1S/C54H74N2P2.C24H20B.ClH.Ir.H/c1-37-27-39(3)53(40(4)28-37)43-31-45(35-57(47-19-11-7-12-20-47)48-21-13-8-14-22-48)55-51(33-43)52-34-44(54-41(5)29-38(2)30-42(54)6)32-46(56-52)36-58(49-23-15-9-16-24-49)50-25-17-10-18-26-50;1-5-13-21(14-6-1)25(22-15-7-2-8-16-22,23-17-9-3-10-18-23)24-19-11-4-12-20-24;;;/h27-34,47-50H,7-26,35-36H2,1-6H3;1-20H;1H;;/q;-1;;+3;-1/p-1" inchikey="BEUJVGCRFICSDD-UHFFFAOYSA-M" height="200px" width="300px" float="none"> | ||
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====Investigation ==== | ====Investigation ==== | ||
{{#experimentlist:|form=Photocatalytic_CO2_conversion_experiments|name=Table 1}} | {{#experimentlist:|form=Photocatalytic_CO2_conversion_experiments|name=Table 1}} | ||
====Sacrificial Electron Donor==== | |||
====Sacrificial | In this study, the experiments were done with the sacrificial electron donor BIH ({{#moleculelink:|link=VDFIVJSRRJXMAU-UHFFFAOYSA-N|image=false|width=300|height=200}}). | ||
{{#moleculelink:|link=VDFIVJSRRJXMAU-UHFFFAOYSA-N|image= | ====Additives==== | ||
In this study, additional control experiments were conducted with Hg. | |||
__FORCETOC__ | __FORCETOC__ | ||
Revision as of 16:05, 22 January 2024
Abstract
Summary
A photochemical reduction of CO2 to formic acid and CO was shown using the iridium complex [Ir(mesbpy-(PCy2)2)][BPh4] as a catalyst without any additional photosensitizer. Turnover numbers (TONs) of 2080 for formic acid and a selectivity of 87% for formic acid were reached in dimethylacetamide. The experiments were conducted under visible-light irradiation (λ > 400 nm) using BIH as sacrificial electron donor (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 and formic acid under visible-light catalysis using an iridium complex. The catalytic system performs best (referring to the TON of formic acid production) in dimethylacetamide.
Catalyst
Investigation
Investigation-Name: Table 1
Sacrificial Electron Donor
In this study, the experiments were done with the sacrificial electron donor BIH (BIH).
Additives
In this study, additional control experiments were conducted with Hg.
Investigations
- Control experiments (Molecular process, Photocatalytic CO2 conversion experiments)
- Photocatalytic reduction of CO2, best TON (Molecular process, Photocatalytic CO2 conversion experiments)
