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

Abstract

Summary

A photochemical reduction of CO₂ to xx was shown using the nickel complexes or as catalysts in combination with the iridium-based photosensitizer Ir(ppy)3 (100843). Turnover numbers (TONs) of xx for xx with the cobalt complex xx were reached in xx. The experiments were conducted under visible-light irradiation (λ > xx nm) using xx as sacrificial electron donor (see section SEDs below).

Content of the published article in detail

The article contains results for the reduction of CO₂ to xx under visible-light catalysis using nickel complexes as catalysts. The catalytic system performs best (referring to the TON of CO production) in xx with the cobalt catalyst xx.

Catalyst

Ni(4O(-)py)-(MeNHC)2Cl (100823) [Ni(py)-(MeNHC)2(MeCN)][PF6]2 (100827)

Photosensitizer

Ir(ppy)3 (100843)

Investigation

REDIRECT Photocatalytic CO2 reduction under varied conditionsInvestigation-Name: Table 1

Sacrificial Electron Donor

In this study, the experiments were done with the sacrificial electron donors BIH (BIH (100508)) and TEA (TEA (100505)).

Additives

In this study, TfOH (100744) was used as an additive.