Bioinspired molecular clusters for water oxidation

Buffer anion effects on water oxidation catalysis: The case of Cu(III) complex

Bimetallic water oxidation: One-site catalysis with two-sites oxidation

A Bio-Inspired Lanthanum-Ortho Quinone Catalyst for Aerobic Oxidation of Alcohol

<p>Oxidation reactions are fundamental transformations in organic synthesis and chemical industry. With oxygen or air as terminal oxidant, aerobic oxidation catalysis provides the most sustainable and economic oxidation processes. Most aerobic oxidation catalysis employs redox metal as its active center. While nature provides non-redox metal strategy as in pyrroloquinoline quinone (PQQ)-dependent methanol dehydrogenases (MDH), such an effective chemical version is unknown. Inspired by the recently discovered rare earth metal-dependent enzyme Ln-MDH, here we show that an open-shell semi-quinone anionic radical species in complexing with lanthanum could serve as a very efficient aerobic oxidation catalyst under ambient conditions. In this catalyst, the lanthanum metal serves only as a Lewis acid promoter and the redox process occurs exclusively on the semiquinone ligand. The catalysis is initiated by 1e^--reduction of lanthanum-activated <i>ortho</i>-quinone to a semiquinone-lanthanum complex La(<b>SQ^-.</b>)₂, which undergoes a coupled O-H/C-H dehydrogenation for aerobic oxidation of alcohols with up to 330 h^-1 TOF. This study suggests a possible functional mode of semiquinone radicals, widely observed with quinoproteins in Nature. Moreover, this unique reductive activation strategy as well as the resulted radical anion as redox ligand creates a new turning point in the development of efficient aerobic oxidation catalysis.</p>

Highly efficient and selective photocatalytic CO2 to CO conversion in aqueous solution

A Co-based complex displayed the highest photocatalytic performance for CO2 to CO conversion in aqueous media.

Metal-Free Electrocatalyst for Water Oxidation Initiated by Hydrogen Atom Transfer

The Application of Pincer Ligand in Catalytic Water Splitting

Proton-coupled electron transfer oxidation of O–H bond by the N-radical cation of Wurster's blue salt (TMPDA˙+)

Beyond a single electron oxidant, the N-radical cation is also a good PCET reagent.

Redox-Active Ligand Assisted Multielectron Catalysis: A Case of CoIII Complex as Water Oxidation Catalyst

Photocatalytic Hydrogen Production with Conjugated Polymers as Photosensitizers

Electrocatalytic Water Oxidation by an Unsymmetrical Di-Copper Complex

Visible-light-mediated C(sp3)-H activation by photo-induced hydrogen-atom transfer

Bimetallic cooperative effect on O–O bond formation: copper polypyridyl complexes as water oxidation catalyst

Two is better than one. The bimetallic cooperation in a binuclear copper complex, compared with the corresponding mononuclear catalyst, can decrease the catalytic overpotential and improve the catalytic efficiency.

Proton-Coupled Electron Transfer in a Series of Ruthenium-Linked Tyrosines with Internal Bases: Evaluation of a Tunneling Model for Experimental Temperature-Dependent Kinetics

Tuning Excited-State Reactivity by Proton-Coupled Electron Transfer

Organic Photocatalytic Cyclization of Polyenes: A Visible-Light-Mediated Radical Cascade Approach

Electrocatalytic Water Oxidation by a Dinuclear Copper Complex in a Neutral Aqueous Solution

Fast and Simple Preparation of Iron-Based Thin Films as Highly Efficient Water-Oxidation Catalysts in Neutral Aqueous Solution

Multiple Pathways in the Oxidation of a NADH Analogue

Homogeneous Electrocatalytic Water Oxidation at Neutral pH by a Robust Macrocyclic Nickel(II) Complex

Single-Site Copper(II) Water Oxidation Electrocatalysis: Rate Enhancements with HPO42−as a Proton Acceptor at pH 8

Making syngas electrocatalytically using a polypyridyl ruthenium catalyst

Electrocatalytic Water Oxidation by a Monomeric Amidate-Ligated Fe(III)–Aqua Complex

Electrocatalytic Water Oxidation with a Copper(II) Polypeptide Complex

Cu(ii)/Cu(0) electrocatalyzed CO2 and H2O splitting

Role of Proton-Coupled Electron Transfer in the Redox Interconversion between Benzoquinone and Hydroquinone

Bimolecular proton-coupled electron transfer from tryptophan with water as the proton acceptor

Spanning Four Mechanistic Regions of Intramolecular Proton-Coupled Electron Transfer in a Ru(bpy)32+–Tyrosine Complex

Proton-Coupled Electron Transfer from Tryptophan: A Concerted Mechanism with Water as Proton Acceptor

Proton-Coupled Electron Transfer from Tyrosine: A Strong Rate Dependence on Intramolecular Proton Transfer Distance

Hydride, Hydrogen Atom, Proton, and Electron Transfer Driving Forces of Various Five-Membered Heterocyclic Organic Hydrides and Their Reaction Intermediates in Acetonitrile