Enhancement of 4-electron O2 reduction by a Cu(ii)–pyridylamine complex via protonation of a pendant pyridine in the second coordination sphere in water†
Abstract
We have synthesised a novel copper(II) complex with a pyridine pendant as a proton relay port for electrocatalytic 4e− reduction of O2 in water. The enhancement of the electrocatalytic O2 reduction via protonation of the pyridine pendant is demonstrated in comparison with a copper(II) complex without the pyridine pendant.