Search results for "Photoactivated acceptors"

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Stereodifferentiation in the formation and decay of the encounter complex in bimolecular electron transfer with photoactivated acceptors.

2005

Experimental evidence has been obtained for the involvement of encounter complexes between both enantiomers of a π,π* triplet excited ketone and a chiral phenol or indole. Determination of the pre-equilibrium constants (KEC) and the intrinsic decay rate constants (kd) indicates a significant stereodifferentiation in both steps of the quenching process. Perez Prieto, Julia, Julia.Perez@uv.es ; Galian, Raquel Eugenia, Raquel.Galian@uv.es ; Morant Miñana, Maria Carmen, Maica.Morant@uv.es

KetoneFormation and decayUNESCO::QUÍMICAPhotochemistry:QUÍMICA [UNESCO]Catalysischemistry.chemical_compoundElectron transferBimolecular electronReaction rate constantMaterials ChemistryPhenolUNESCO::QUÍMICA::Química orgánicaStereodifferentiatioPhotoactivated acceptorschemistry.chemical_classificationIndole testQuenching (fluorescence):QUÍMICA::Química orgánica [UNESCO]Metals and AlloysGeneral ChemistrySurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialschemistryExcited statePhotoactivated acceptors ; Bimolecular electron ; Stereodifferentiatio ; Formation and decayCeramics and CompositesEnantiomerChemical communications (Cambridge, England)
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