Surprisingly big linker-dependence of activity and selectivity in CO 2 reduction by an iridium(I) pincer complex
In this work, we report the quantitative electroreduction of CO 2 to CO by a PNP-pincer iridium(I) complex bearing amino linkers in DMF/water. The activity and selectivity of the reduction greatly depend on the choice of linker within the ligand. The complex 3-N is far superior to the analogues with methylene and oxygen linkers, showing higher activity and better selectivity for CO 2 over proton reduction.
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗