Kinetic Studies of CO2 Insertion into Metal–Element σ‑Bonds
Hazari N. Kinetic Studies of CO2 Insertion into Metal–Element σ‑Bonds. Accounts Of Chemical Research 2024, 57: 2847-2858. PMID: 39268567, DOI: 10.1021/acs.accounts.4c00440.Peer-Reviewed Original ResearchOuter-sphere processS bondsPresence of Lewis acidsKinetic studiesDimroth-Reichardt parameterMetal-catalyzed reactionsImproved catalytic performanceC-C bondsInner-sphere processAncillary ligandsCO2 insertionStronger donorAlkyl ligandsElectron-donatingLewis acidSteric bulkSolvent effectsCatalytic performanceReaction solventMetal alkylsNucleophilic attackLigand effectAlkyl groupsGeneration of fuelsSolvent increasesIron Catalysts Supported by a PNP Ligand with an Additional Hemilabile Donor for CO2 Hydrogenation
Wedal J, Virtue K, Bernskoetter W, Hazari N, Mercado B. Iron Catalysts Supported by a PNP Ligand with an Additional Hemilabile Donor for CO2 Hydrogenation. ACS Catalysis 2024, 14: 13903-13914. DOI: 10.1021/acscatal.4c04127.Peer-Reviewed Original ResearchPincer ligandIron complexesIron catalystCO2 hydrogenation to formateCatalyst resting stateIron hydride speciesHydrogenation to formateEther donorsPNP ligandCationic complexesCO2 hydrogenationHydride speciesActive catalystTurnover frequencyCatalytic performanceCatalytic lifetimeIron centerDehydrogenation reactionCatalyst deactivationCatalystTurnover numberCatalytic turnoverIron systemLigandTheoretical studyEffect of 6,6′-Substituents on Bipyridine-Ligated Ni Catalysts for Cross-Electrophile Coupling
Huang H, Alvarez-Hernandez J, Hazari N, Mercado B, Uehling M. Effect of 6,6′-Substituents on Bipyridine-Ligated Ni Catalysts for Cross-Electrophile Coupling. ACS Catalysis 2024, 14: 6897-6914. PMID: 38737398, PMCID: PMC11087080, DOI: 10.1021/acscatal.4c00827.Peer-Reviewed Original ResearchBulky substituentsNi complexesCross-electrophile couplingNi-catalyzed transformationII oxidation stateActive catalystTurnover frequencyCatalytic performanceAlkyl radicalsCatalytic intermediatesNi catalystsSubstituentsLow-spinCatalytic activityOxidation stateCl speciesHigh-spinCatalystLigandRoom temperatureBu2ReactionComplexPrecatalystXeCPhotoelectrochemical CO2 Reduction to CO Enabled by a Molecular Catalyst Attached to High-Surface-Area Porous Silicon
Jia X, Stewart-Jones E, Alvarez-Hernandez J, Bein G, Dempsey J, Donley C, Hazari N, Houck M, Li M, Mayer J, Nedzbala H, Powers R. Photoelectrochemical CO2 Reduction to CO Enabled by a Molecular Catalyst Attached to High-Surface-Area Porous Silicon. Journal Of The American Chemical Society 2024, 146: 7998-8004. PMID: 38507795, DOI: 10.1021/jacs.3c10837.Peer-Reviewed Original ResearchRe catalystsConversion of CO2 to COCO2 reduction to COPhotoelectrochemical CO2 reductionReduction to COSi-based photoelectrodesCO2 to COHigh-surface-areaOptimal reaction conditionsCatalyst attachmentAcetonitrile solutionPhotoelectrochemical conversionSi photoelectrodesSi photocathodeFaradaic efficiencyCatalytic performanceCyclic voltammogramsReaction conditionsSun illuminationCO2 reductionPhotoelectrodeFTIR spectroscopyCatalystPlanar Si waferSi cathode