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 ions
2004
Redox Functions of Carotenoids in Photosynthesis †
Frank HA, Brudvig GW. Redox Functions of Carotenoids in Photosynthesis †. Biochemistry 2004, 43: 8607-8615. PMID: 15236568, DOI: 10.1021/bi0492096.Peer-Reviewed Original ResearchConceptsBacterial light-harvesting complexesLight-harvesting complexCarotenoid cation radicalsPhotosystem IICation radicalsCation radical formationLight-harvesting pigmentsChlorophyll triplet statesPhotosynthetic reaction centersWater oxidationMolecular wiresRedox centersRedox reactionsElectron transferPhotosynthetic apparatusMeans of photoprotectionRedox roleBacterial photosynthesisRedox functionCarotenoid moleculesTriplet stateReaction centersRadical formationNovel mechanismPhysiological significance
2002
Electronic Structure of the P700 Special Pair from High-Frequency Electron Paramagnetic Resonance Spectroscopy
Poluektov O, Utschig L, Schlesselman S, Lakshmi K, Brudvig G, Kothe G, Thurnauer M. Electronic Structure of the P700 Special Pair from High-Frequency Electron Paramagnetic Resonance Spectroscopy. The Journal Of Physical Chemistry B 2002, 106: 8911-8916. DOI: 10.1021/jp021465+.Peer-Reviewed Original ResearchElectron paramagnetic resonance spectroscopyParamagnetic resonance spectroscopyTriplet stateFrequency Electron Paramagnetic Resonance SpectroscopyElectronic structureHigh-frequency electron paramagnetic resonance spectroscopyResonance spectroscopyPrimary donorPrimary donor cationPhotosynthetic reaction centersHigh-frequency EPRDonor cationI. Electronic structureElectronic characterReaction centersValue anisotropySpecial pairTensor axesCationsSpectroscopyPhotosystem IP700T stateEPRStructure