Molecules, Год журнала: 2024, Номер 29(3), С. 578 - 578

Опубликована: Янв. 24, 2024

Mimicking the photosynthesis of green plants to combine water oxidation with CO2 reduction is great significance for solving energy and environmental crises. In this context, a trinuclear nickel complex, [NiII3(paoH)6(PhPO3)2]·2ClO4 (1), novel structure has been constructed PhPO32− (phenylphosphonate) paoH (2-pyridine formaldehyde oxime) ligands possesses reflection symmetry mirror plane revealed by single-crystal X-ray diffraction. Bulk electrocatalysis demonstrates that complex 1 can homogeneously catalyze simultaneously. It at near-neutral condition pH = 7.45 high TOF 12.2 s−1, Faraday efficiency as 95%. Meanwhile, it also exhibits electrocatalytic activity towards CO 7.84 s−1 in DMF solution. The excellent performance could be attributed two unique µ3-PhPO32− bridges crucial factor stabilizing molecule well proton transformation during catalytic process, while oxime groups modulate electronic metal centers via π back-bonding. Therefore, apart from cooperation effect three Ni catalysis, simultaneously, kinds synergistically coordinate central metal, thereby significantly promoting its performance. Complex represents first molecular electrocatalyst both reduction. findings work open an avenue designing efficient electrocatalysts peculiar ligands.

Язык: Английский