title: 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.
authors.affiliation: Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8571, Japan. kojima@chem.tsukuba.ac.jp.
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Kotani
authors.forename: Tomomi
authors.initials: T
authors.lastname: Yagi
authors.forename: Tomoya
authors.initials: T
authors.lastname: Ishizuka
authors.forename: Takahiko
authors.initials: T
authors.lastname: Kojima
mesh_terms: D002384:Catalysis; D056831:Coordination Complexes / Q000138:chemical synthesis / Q000737:chemistry*; D003300:Copper / Q000737:chemistry*; D004578:Electron Spin Resonance Spectroscopy; D004583:Electrons; D008968:Molecular Conformation; D010084:Oxidation-Reduction; D010100:Oxygen / Q000737:chemistry*; D011522:Protons; D011725:Pyridines / Q000737:chemistry*; D014867:Water / Q000737:chemistry*
chemical_list: D056831:Coordination Complexes; D011522:Protons; D011725:Pyridines; D014867:Water; D003300:Copper; C023666:pyridine; D010100:Oxygen