2005
New Linear High-Valent Tetranuclear Manganese-Oxo Cluster Relevant to the Oxygen-Evolving Complex of Photosystem II with Oxo, Hydroxo, and Aqua Coordinated to a Single Mn(IV)
Chen, Collomb M, Duboc C, Blondin G, Rivière E, Faller J, Crabtree R, Brudvig G. New Linear High-Valent Tetranuclear Manganese-Oxo Cluster Relevant to the Oxygen-Evolving Complex of Photosystem II with Oxo, Hydroxo, and Aqua Coordinated to a Single Mn(IV). Inorganic Chemistry 2005, 44: 9567-9573. PMID: 16323946, DOI: 10.1021/ic051462m.Peer-Reviewed Original ResearchConceptsGround stateSpin statesFirst excited spin stateExcited spin statesSpin-triplet stateLarge energy gapOxygen-Evolving ComplexMn–Mn distanceDiamagnetic ground stateEnergy gapVariable-temperature magnetic susceptibility dataX-ray powder diffractionTriplet stateMagnetic susceptibility dataTetranuclear manganeseMnIV ionsHigh‐Spin Chloro Mononuclear MnIII Complexes: A Multifrequency High‐Field EPR Study
Mantel C, Chen H, Crabtree R, Brudvig G, Pécaut J, Collomb M, Duboc C. High‐Spin Chloro Mononuclear MnIII Complexes: A Multifrequency High‐Field EPR Study. ChemPhysChem 2005, 6: 541-546. PMID: 15799481, DOI: 10.1002/cphc.200400484.Peer-Reviewed Original ResearchConceptsElectronic propertiesLigand field strengthHigh-Field EPR StudyPorphyrinic systemsTridentate ligandMnIII complexesDistorted octahedronLigands decreasesSolid stateJahn-Teller distortionPrevious complexesStructural characterizationCrystallographic dataEPR studiesMultifrequency EPRManganese ionsComplexesOctahedraTetragonal distortionE termDifferent temperaturesAnionsEPRLigandsProperties
2002
Two New Terpyridine Dimanganese Complexes: A Manganese(III,III) Complex with a Single Unsupported Oxo Bridge and a Manganese(III,IV) Complex with a Dioxo Bridge. Synthesis, Structure, and Redox Properties
Baffert C, Collomb M, Deronzier A, Pécaut J, Limburg J, Crabtree R, Brudvig G. Two New Terpyridine Dimanganese Complexes: A Manganese(III,III) Complex with a Single Unsupported Oxo Bridge and a Manganese(III,IV) Complex with a Dioxo Bridge. Synthesis, Structure, and Redox Properties. Inorganic Chemistry 2002, 41: 1404-1411. PMID: 11896708, DOI: 10.1021/ic0107375.Peer-Reviewed Original ResearchConceptsOxo bridgeElectrochemical behaviorX-ray structureMononuclear complexesComplexes 4Oxo complexesRedox propertiesAqua complexesDimanganese complexesOrganic mediaTrans complexesCis geometrySolid stateDioxo bridgeTrans geometryCis complexesDisproportionation processTrans configurationCrystallographic formsComplexesMn atomsCisMonooxoLigandsSynthesis