Nickel() pincer complexes demonstrate that the remote substituent controls catalytic carbon dioxide reduction

The first example of a CNC pincer ligand with a central pyridinol ligand is reported in a nickel( ii ) complex. This metal complex can be protonated or deprotonated reversibly in situ to switch on or off the photocatalytic performance towards CO 2 reduction. The O − substituent appears essential for...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2018-04, Vol.54 (31), p.3819-3822
Main Authors: Burks, Dalton B, Davis, Shakeyia, Lamb, Robert W, Liu, Xuan, Rodrigues, Roberta R, Liyanage, Nalaka P, Sun, Yujie, Webster, Charles Edwin, Delcamp, Jared H, Papish, Elizabeth T
Format: Article
Language:English
Subjects:
Carbon dioxide
Catalysis
Coordination compounds
Ligands
Nickel
Numerical controls
Reduction
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Summary:The first example of a CNC pincer ligand with a central pyridinol ligand is reported in a nickel( ii ) complex. This metal complex can be protonated or deprotonated reversibly in situ to switch on or off the photocatalytic performance towards CO 2 reduction. The O − substituent appears essential for catalysis. New pincers containing a pyridinol ring form active nickel catalysts for CO 2 reduction, and interestingly protonation switches the catalyst off.
ISSN:1359-7345
1364-548X
DOI:10.1039/c7cc09507d