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

{{DOI|doi=10.1039/C8CC04892D}}
[[Category:Photocatalytic CO2 conversion to CO]][[Category:Publication]]
{{BaseTemplate}}
===Abstract===
====Summary====
A photochemical reduction of CO<sub>2</sub> to CO was shown using the copper cryptate  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).
====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 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.
====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">
  -INDIGO-05162416072D

  0  0  0  0  0  0  0  0  0  0  0 V3000
M  V30 BEGIN CTAB
M  V30 COUNTS 65 73 0 0 0
M  V30 BEGIN ATOM
M  V30 1 C 6.58485 -3.50007 0.0 0
M  V30 2 C 8.31515 -3.49959 0.0 0
M  V30 3 C 7.45164 -2.99997 0.0 0
M  V30 4 C 8.31515 -4.50053 0.0 0
M  V30 5 C 6.58485 -4.50502 0.0 0
M  V30 6 C 7.45382 -5.0 0.0 0
M  V30 7 C 9.17965 -3.00121 0.0 0
M  V30 8 C 10.0468 -3.50155 0.0 0
M  V30 9 C 9.1858 -5.00287 0.0 0
M  V30 10 C 10.049 -4.49746 0.0 0
M  V30 11 C 6.55985 -6.35007 0.0 0
M  V30 12 C 8.29015 -6.34959 0.0 0
M  V30 13 C 7.42664 -5.84997 0.0 0
M  V30 14 C 8.29015 -7.35053 0.0 0
M  V30 15 C 6.55985 -7.35502 0.0 0
M  V30 16 C 7.42882 -7.85003 0.0 0
M  V30 17 C 9.15465 -5.85121 0.0 0
M  V30 18 C 10.0218 -6.35155 0.0 0
M  V30 19 C 9.1608 -7.85287 0.0 0
M  V30 20 C 10.024 -7.34746 0.0 0
M  V30 21 C 6.70985 -9.12507 0.0 0
M  V30 22 C 8.44015 -9.12459 0.0 0
M  V30 23 C 7.57664 -8.62497 0.0 0
M  V30 24 C 8.44015 -10.1255 0.0 0
M  V30 25 C 6.70985 -10.13 0.0 0
M  V30 26 C 7.57882 -10.625 0.0 0
M  V30 27 C 9.30465 -8.62621 0.0 0
M  V30 28 C 10.1718 -9.12655 0.0 0
M  V30 29 C 9.3108 -10.6279 0.0 0
M  V30 30 C 10.174 -10.1225 0.0 0
M  V30 31 C 5.89528 -7.80753 0.0 0
M  V30 32 N 5.07781 -7.36004 0.0 0
M  V30 33 C 4.33823 -8.01254 0.0 0
M  V30 34 C 3.97076 -7.54005 0.0 0
M  V30 35 N 3.43119 -8.06756 0.0 0
M  V30 36 C 2.69325 -7.32283 0.0 0
M  V30 37 C 3.43119 -9.06756 0.0 0
M  V30 38 C 10.7622 -5.92547 0.0 0
M  V30 39 N 11.5039 -6.42438 0.0 0
M  V30 40 C 12.2193 -5.8733 0.0 0
M  V30 41 C 12.7264 -6.25541 0.0 0
M  V30 42 N 13.3424 -5.80541 0.0 0
M  V30 43 C 13.6924 -4.41438 0.0 0
M  V30 44 C 13.8584 -6.90541 0.0 0
M  V30 45 Co 12.4 -7.2 0.0 0 CHG=1
M  V30 46 C 13.2586 -3.64846 0.0 0
M  V30 47 N 12.1677 -3.68964 0.0 0
M  V30 48 C 10.9516 -2.96464 0.0 0
M  V30 49 C 13.2746 -7.99633 0.0 0
M  V30 50 N 12.0175 -8.32844 0.0 0
M  V30 51 C 11.1628 -9.11037 0.0 0
M  V30 52 O 11.175 -7.2 0.0 0
M  V30 53 H 12.5175 -9.19447 0.0 0
M  V30 54 H 11.5039 -5.42438 0.0 0
M  V30 55 C 4.1383 -9.77466 0.0 0
M  V30 56 N 5.1383 -9.77466 0.0 0
M  V30 57 C 5.9204 -10.4318 0.0 0
M  V30 58 C 2.89325 -6.39783 0.0 0
M  V30 59 N 3.90928 -5.82283 0.0 0
M  V30 60 C 4.7931 -4.73191 0.0 0
M  V30 61 Cl 14.55 -2.175 0.0 0 CHG=-1
M  V30 62 O 14.55 -1.175 0.0 0
M  V30 63 O 15.55 -2.175 0.0 0
M  V30 64 O 14.55 -3.175 0.0 0
M  V30 65 O 13.55 -2.175 0.0 0
M  V30 END ATOM
M  V30 BEGIN BOND
M  V30 1 2 3 1
M  V30 2 2 4 2
M  V30 3 1 1 5
M  V30 4 1 2 3
M  V30 5 2 5 6
M  V30 6 1 6 4
M  V30 7 2 8 7
M  V30 8 1 4 9
M  V30 9 1 7 2
M  V30 10 2 9 10
M  V30 11 1 10 8
M  V30 12 2 13 11
M  V30 13 2 14 12
M  V30 14 1 11 15
M  V30 15 1 12 13
M  V30 16 2 15 16
M  V30 17 1 16 14
M  V30 18 2 18 17
M  V30 19 1 14 19
M  V30 20 1 17 12
M  V30 21 2 19 20
M  V30 22 1 20 18
M  V30 23 2 23 21
M  V30 24 2 24 22
M  V30 25 1 21 25
M  V30 26 1 22 23
M  V30 27 2 25 26
M  V30 28 1 26 24
M  V30 29 2 28 27
M  V30 30 1 24 29
M  V30 31 1 27 22
M  V30 32 2 29 30
M  V30 33 1 30 28
M  V30 34 1 15 31
M  V30 35 1 31 32
M  V30 36 1 32 33
M  V30 37 1 33 34
M  V30 38 1 34 35
M  V30 39 1 35 36
M  V30 40 1 35 37
M  V30 41 1 18 38
M  V30 42 1 38 39
M  V30 43 1 39 40
M  V30 44 1 40 41
M  V30 45 1 41 42
M  V30 46 1 42 43
M  V30 47 1 42 44
M  V30 48 1 43 46
M  V30 49 1 46 47
M  V30 50 1 47 48
M  V30 51 1 48 8
M  V30 52 1 44 49
M  V30 53 1 49 50
M  V30 54 1 28 51
M  V30 55 1 51 50
M  V30 56 1 52 45
M  V30 57 8 50 45
M  V30 58 8 39 45
M  V30 59 8 45 42
M  V30 60 1 50 53
M  V30 61 1 39 54
M  V30 62 1 37 55
M  V30 63 1 55 56
M  V30 64 1 56 57
M  V30 65 1 57 25
M  V30 66 1 36 58
M  V30 67 1 58 59
M  V30 68 1 59 60
M  V30 69 1 60 5
M  V30 70 2 61 62
M  V30 71 2 61 63
M  V30 72 2 61 64
M  V30 73 2 61 65
M  V30 END BOND
M  V30 END CTAB
M  END
</chemform>

====Photosensitizer====
====Investigation====

====Sacrificial electron donor====
In this study, the experiments were done with the sacrificial electron donor {{#moleculelink:|link=GSEJCLTVZPLZKY-UHFFFAOYSA-N|image=false|width=300|height=200}}. 
====Additives====
In this study, no additives were tested.
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