Photocatalytic CO2 Reduction Mediated by Electron Transfer via the Excited Triplet State of Zn(II) Porphyrin: Difference between revisions

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[[Category:Photocatalytic CO2 conversion to CO]][[Category:Publication]]
[[Category:Photocatalytic CO2 conversion to CO]][[Category:Publication]]
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{{BaseTemplate}}
===Abstract===
====Summary====
A photochemical reduction of CO<sub>2</sub> to CO was shown using the zinc porphyrin dyad with a connected rhenium complex {{#moleculelink:|link=|image=|width=|height=}} as a combined catalyst and photosensitizer molecule. Turnover numbers (TONs) of >1300 and a selectivity of >99.9% for CO were reached in DMA with catalyst {{#moleculelink: |link=DJDQCCRAAYOAPK-UHFFFAOYSA-N|image=false|width=300|height=200}}. 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====
====Additional remarks====
===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  as a catalyst. The catalytic system performs best (referring to the TON of CO production) in DMA.
====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">
  -INDIGO-05152413072D
  0  0  0  0  0  0  0  0  0  0  0 V3000
M  V30 BEGIN CTAB
M  V30 COUNTS 77 91 0 0 0
M  V30 BEGIN ATOM
M  V30 1 C 5.78617 -7.21572 0.0 0
M  V30 2 C 6.46968 -7.88753 0.0 0
M  V30 3 C 7.39259 -7.38012 0.0 0
M  V30 4 N 7.24189 -6.45401 0.0 0
M  V30 5 C 6.24178 -6.28441 0.0 0
M  V30 6 C 6.49788 -2.92928 0.0 0
M  V30 7 C 5.79067 -3.64888 0.0 0
M  V30 8 C 6.22618 -4.50099 0.0 0
M  V30 9 N 7.18759 -4.31439 0.0 0
M  V30 10 C 7.39309 -3.34948 0.0 0
M  V30 11 C 5.77057 -5.4325 0.0 0
M  V30 12 C 10.7476 -3.53428 0.0 0
M  V30 13 C 10.0641 -2.86247 0.0 0
M  V30 14 C 9.14081 -3.33418 0.0 0
M  V30 15 N 9.32791 -4.33129 0.0 0
M  V30 16 C 10.2564 -4.46599 0.0 0
M  V30 17 C 8.2807 -2.87807 0.0 0
M  V30 18 C 10.1077 -7.85583 0.0 0
M  V30 19 C 10.7794 -7.17212 0.0 0
M  V30 20 C 10.3074 -6.21331 0.0 0
M  V30 21 N 9.31061 -6.43601 0.0 0
M  V30 22 C 9.14071 -7.40052 0.0 0
M  V30 23 C 8.2886 -7.87163 0.0 0
M  V30 24 C 10.7636 -5.3532 0.0 0
M  V30 25 Zn 8.2 -5.4 0.0 0
M  V30 26 C 8.28039 -1.87807 0.0 0
M  V30 27 C 4.77089 -5.45767 0.0 0
M  V30 28 C 11.7635 -5.33737 0.0 0
M  V30 29 C 8.29026 -8.87162 0.0 0
M  V30 30 C 3.27323 -6.32424 0.0 0
M  V30 31 C 4.27087 -6.3245 0.0 0
M  V30 32 C 2.77218 -5.45774 0.0 0
M  V30 33 C 4.26783 -4.5877 0.0 0
M  V30 34 C 3.26778 -4.59416 0.0 0
M  V30 35 C 7.41381 -0.380413 0.0 0
M  V30 36 C 7.41355 -1.37805 0.0 0
M  V30 37 C 8.28032 0.12064 0.0 0
M  V30 38 C 9.15036 -1.37502 0.0 0
M  V30 39 C 9.14389 -0.374964 0.0 0
M  V30 40 C 9.15683 -10.3693 0.0 0
M  V30 41 C 9.15709 -9.37165 0.0 0
M  V30 42 C 8.29033 -10.8703 0.0 0
M  V30 43 C 7.42029 -9.37468 0.0 0
M  V30 44 C 7.42675 -10.3747 0.0 0
M  V30 45 C 13.2612 -4.47079 0.0 0
M  V30 46 N 12.2635 -4.47053 0.0 0
M  V30 47 C 13.7622 -5.3373 0.0 0
M  V30 48 C 12.2666 -6.20734 0.0 0
M  V30 49 C 13.2666 -6.20088 0.0 0
M  V30 50 C 1.77218 -5.45937 0.0 0
M  V30 51 C 1.27076 -4.59416 0.0 0
M  V30 52 C 1.27359 -6.32621 0.0 0
M  V30 53 C 0.772179 -5.461 0.0 0
M  V30 54 C 8.27868 1.12064 0.0 0
M  V30 55 C 9.14389 1.62205 0.0 0
M  V30 56 C 7.41184 1.61922 0.0 0
M  V30 57 C 8.27705 2.12064 0.0 0
M  V30 58 C 8.29196 -11.8703 0.0 0
M  V30 59 C 7.42675 -12.3718 0.0 0
M  V30 60 C 9.1588 -12.3689 0.0 0
M  V30 61 C 8.29359 -12.8703 0.0 0
M  V30 62 C 13.7601 -3.6066 0.0 0
M  V30 63 C 14.7612 -3.60564 0.0 0
M  V30 64 C 14.7674 -5.33633 0.0 0
M  V30 65 C 15.2617 -4.46669 0.0 0
M  V30 66 N 13.2608 -2.74239 0.0 0
M  V30 67 C 13.7604 -1.87453 0.0 0
M  V30 68 C 15.2629 -2.73431 0.0 0
M  V30 69 C 14.7565 -1.87137 0.0 0
M  V30 70 Re 12.075 -3.15 0.0 0
M  V30 71 Br 11.35 -4.075 0.0 0
M  V30 72 C 11.1286 -2.72054 0.0 0 CHG=-1
M  V30 73 C 11.85 -2.25 0.0 0 CHG=-1
M  V30 74 C 12.8 -2.15 0.0 0 CHG=-1
M  V30 75 O 10.4214 -2.01343 0.0 0 CHG=1
M  V30 76 O 11.5912 -1.28407 0.0 0 CHG=1
M  V30 77 O 12.8 -1.15 0.0 0 CHG=1
M  V30 END ATOM
M  V30 BEGIN BOND
M  V30 1 2 1 2
M  V30 2 1 2 3
M  V30 3 2 3 4
M  V30 4 1 4 5
M  V30 5 1 1 5
M  V30 6 2 5 11
M  V30 7 1 3 23
M  V30 8 1 6 7
M  V30 9 2 7 8
M  V30 10 1 8 9
M  V30 11 1 9 10
M  V30 12 2 6 10
M  V30 13 1 10 17
M  V30 14 1 8 11
M  V30 15 2 12 13
M  V30 16 1 13 14
M  V30 17 1 14 15
M  V30 18 2 15 16
M  V30 19 1 12 16
M  V30 20 1 16 24
M  V30 21 2 14 17
M  V30 22 2 18 19
M  V30 23 1 19 20
M  V30 24 1 20 21
M  V30 25 1 21 22
M  V30 26 1 18 22
M  V30 27 2 22 23
M  V30 28 2 20 24
M  V30 29 1 9 25
M  V30 30 1 25 21
M  V30 31 8 4 25
M  V30 32 8 25 15
M  V30 33 1 17 26
M  V30 34 1 11 27
M  V30 35 1 24 28
M  V30 36 1 23 29
M  V30 37 2 31 27
M  V30 38 2 32 30
M  V30 39 1 27 33
M  V30 40 1 30 31
M  V30 41 2 33 34
M  V30 42 1 34 32
M  V30 43 2 36 26
M  V30 44 2 37 35
M  V30 45 1 26 38
M  V30 46 1 35 36
M  V30 47 2 38 39
M  V30 48 1 39 37
M  V30 49 2 41 29
M  V30 50 2 42 40
M  V30 51 1 29 43
M  V30 52 1 40 41
M  V30 53 2 43 44
M  V30 54 1 44 42
M  V30 55 2 46 28
M  V30 56 2 47 45
M  V30 57 1 28 48
M  V30 58 1 45 46
M  V30 59 2 48 49
M  V30 60 1 49 47
M  V30 61 1 32 50
M  V30 62 1 50 51
M  V30 63 1 50 52
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M  V30 84 8 70 66
M  V30 85 1 71 70
M  V30 86 3 72 75
M  V30 87 3 73 76
M  V30 88 3 74 77
M  V30 89 8 70 72
M  V30 90 8 70 73
M  V30 91 8 70 74
M  V30 END BOND
M  V30 END CTAB
M  END
</chemform>
====Investigation====
====Sacrificial electron donor====
In this study, the experiments were done with the sacrificial electron donor BIH {{#moleculelink:|link=VDFIVJSRRJXMAU-UHFFFAOYSA-N|image=false|width=300|height=200}}.
====Additives====
In this study, phenol was added to the reaction.

Revision as of 12:11, 15 May 2024


Abstract

Summary

A photochemical reduction of CO2 to CO was shown using the zinc porphyrin dyad with a connected rhenium complex -missing link parameter- as a combined catalyst and photosensitizer molecule. Turnover numbers (TONs) of >1300 and a selectivity of >99.9% for CO were reached in DMA with catalyst 100949. 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

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 the as a catalyst. The catalytic system performs best (referring to the TON of CO production) in DMA.

Catalyst and Photosensitizer

(Zn(tBuPP))-(Re(Phen)Br(CO)3)

Investigation

Sacrificial electron donor

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

Additives

In this study, phenol was added to the reaction.

Investigations

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