The origin of unidirectional charge separation in photosynthetic reaction centers: nonadiabatic quantum dynamics of exciton and charge in pigment–protein complexes
Hiroyuki Tamura, Keisuke Saito, Hiroshi Ishikita
Abstract
direct and indirect pathways. Subsequently, the ultrafast electron transfer to pheophytin in the active branch prevents exciton back transfer to the inactive branch, thereby achieving unidirectional charge separation.
Topics & Concepts
ExcitonPhotosynthetic reaction centreChemistryChemical physicsPheophytinExcited statePhotoinduced charge separationPurple bacteriaBacteriochlorophyllElectron transferPhotosystem IITime-dependent density functional theoryPhotosystem IDensity functional theoryMolecular physicsPhotochemistryAtomic physicsPhotosynthesisComputational chemistryPhysicsArtificial photosynthesisQuantum mechanicsPhotocatalysisCatalysisBiochemistryPhotosynthetic Processes and MechanismsSpectroscopy and Quantum Chemical StudiesPhotoreceptor and optogenetics research