Highly efficient and selective visible-light driven CO2-to-CO conversion by a Co-based cryptate in H2O-CH3CN solution: Difference between revisions

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===Abstract===
===Abstract===
====Summary====
====Summary====
A photochemical reduction of CO<sub>2</sub> to CO was shown using the copper cryptates {{#moleculelink:|link=ZEYWCDNYJFKWNP-UHFFFAOYSA-L|image=false|width=300|height=200}} or {{#moleculelink:|link=PFCMEJLVBIHANS-UHFFFAOYSA-L|image=false|width=300|height=200}} as catalyst in combination with the ruthenium photosensitizer . Turnover numbers (TONs) up to 51392 and a selectivity of 98% for CO were reached in MeCN/H<sub>2</sub>O. The experiments were conducted under visible-light irradiation (λ = 450 nm) using TEOA as sacrificial electron donor (see section SEDs below).
A photochemical reduction of CO<sub>2</sub> to CO was shown using the copper cryptates {{#moleculelink:|link=ZEYWCDNYJFKWNP-UHFFFAOYSA-L|image=false|width=300|height=200}} or {{#moleculelink:|link=PFCMEJLVBIHANS-UHFFFAOYSA-L|image=false|width=300|height=200}} as catalyst in combination with the ruthenium photosensitizer {{#moleculelink:|link=YRYUXGTVQZIGNQ-UHFFFAOYSA-N|image=false|width=300|height=200}}. Turnover numbers (TONs) up to 51392 and a selectivity of 98% for CO were reached in MeCN/H<sub>2</sub>O. The experiments were conducted under visible-light irradiation (λ = 450 nm) using TEOA as sacrificial electron donor (see section SEDs below).
====Advances and special progress====
====Advances and special progress====
The authors presented a highly active copper-based catalyst for the visible-light catalyzed reduction of CO<sub>2</sub> to CO with high TON and TOF values.
====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 a copper complex as a catalyst. The catalytic system performs best (referring to the TON of CO production) in MeCN/H<sub>2</sub>O with complex xx.
The article contains results for the reduction of CO<sub>2</sub> to CO under visible-light catalysis using a copper complex as a catalyst. The catalytic system performs best (referring to the TON of CO production) in MeCN/H<sub>2</sub>O with complex {{#moleculelink:|link=ZEYWCDNYJFKWNP-UHFFFAOYSA-L|image=false|width=300|height=200}}.
====Catalyst====
====Catalyst====
<chemform smiles="C1C2CNCCN3CCNCC4=CC5C=CC(CN([H])6~[Co+]7(~N(CC6)(CCNCC6C=CC(C=2)=C(C=6)C=1)CCN~7([H])CC1C=CC2C=C(CNCC3)C=CC=2C=1)O)=CC=5C=C4.[Cl-](=O)(=O)(=O)=O" inchi="1S/C48H60N8.ClHO4.Co.H2O/c1-7-43-26-38-2-8-44(43)25-37(1)31-49-13-19-55-20-15-51-33-39-3-9-47-29-41(5-11-45(47)27-39)35-53-17-23-56(22-14-50-32-38)24-18-54-36-42-6-12-46-28-40(34-52-16-21-55)4-10-48(46)30-42;2-1(3,4)5;;/h1-12,25-30,49-54H,13-24,31-36H2;(H,2,3,4,5);;1H2/q;;+2;/p-2" inchikey="ZEYWCDNYJFKWNP-UHFFFAOYSA-L" height="200px" width="300px" float="none">
<chemform smiles="C1C2CNCCN3CCNCC4=CC5C=CC(CN([H])6~[Co+]7(~N(CC6)(CCNCC6C=CC(C=2)=C(C=6)C=1)CCN~7([H])CC1C=CC2C=C(CNCC3)C=CC=2C=1)O)=CC=5C=C4.[Cl-](=O)(=O)(=O)=O" inchi="1S/C48H60N8.ClHO4.Co.H2O/c1-7-43-26-38-2-8-44(43)25-37(1)31-49-13-19-55-20-15-51-33-39-3-9-47-29-41(5-11-45(47)27-39)35-53-17-23-56(22-14-50-32-38)24-18-54-36-42-6-12-46-28-40(34-52-16-21-55)4-10-48(46)30-42;2-1(3,4)5;;/h1-12,25-30,49-54H,13-24,31-36H2;(H,2,3,4,5);;1H2/q;;+2;/p-2" inchikey="ZEYWCDNYJFKWNP-UHFFFAOYSA-L" height="200px" width="300px" float="none">
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====Investigation====
====Investigation====
{{#experimentlist:|form=Photocatalytic_CO2_conversion_experiments|name=photocatalytic CO2 conversion under different conditions|importFile=}}


====Sacrificial electron donor====
====Sacrificial electron donor====

Latest revision as of 15:54, 16 May 2024


Abstract[edit | edit source]

Summary[edit | edit source]

A photochemical reduction of CO2 to CO was shown using the copper cryptates 100956 or 100957 as catalyst in combination with the ruthenium photosensitizer [Ru(phen)3][PF6]2. Turnover numbers (TONs) up to 51392 and a selectivity of 98% for CO were reached in MeCN/H2O. The experiments were conducted under visible-light irradiation (λ = 450 nm) using TEOA as sacrificial electron donor (see section SEDs below).

Advances and special progress[edit | edit source]

The authors presented a highly active copper-based catalyst for the visible-light catalyzed reduction of CO2 to CO with high TON and TOF values.

Additional remarks[edit | edit source]

Content of the published article in detail[edit | edit source]

The article contains results for the reduction of CO2 to CO under visible-light catalysis using a copper complex as a catalyst. The catalytic system performs best (referring to the TON of CO production) in MeCN/H2O with complex 100956.

Catalyst[edit | edit source]

100956 100957

Photosensitizer[edit | edit source]

[Ru(phen)3][PF6]2

Investigation[edit | edit source]

catcat conc [µM]PSPS conc [mM]e-De-D conc [M]solvent A....λexc [nm].TON CO..
1.

Molecule:100956

0.000025

[Ru(phen)3][PF6]2

0.4

TEOA

0.3

MeCN

45033792
2.

Molecule:100957

0.000025

[Ru(phen)3][PF6]2

0.4

TEOA

0.3

MeCN

45018656
3.


[Ru(phen)3][PF6]2

0.4

TEOA

0.3

MeCN

4500
4.

Molecule:100957

0.000025


TEOA

0.3

MeCN

4500
5.

Molecule:100957

0.000025

[Ru(phen)3][PF6]2

0.4

TEOA

0.3

MeCN

0
6.

Molecule:100957

0.000025

[Ru(phen)3][PF6]2

0.4


MeCN

4500
7.

Molecule:100957

0.0005

[Ru(phen)3][PF6]2

0.4

TEOA

0.3

MeCN

450600
8.

Molecule:100957

0.001

[Ru(phen)3][PF6]2

0.4

TEOA

0.3

MeCN

4501582
9.

Molecule:100957

0.0000125

[Ru(phen)3][PF6]2

0.4

TEOA

0.3

MeCN

45051392

Sacrificial electron donor[edit | edit source]

In this study, the experiments were done with the sacrificial electron donor TEOA.

Additives[edit | edit source]

In this study, no additives were tested.

Investigations

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