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Determination of End-to-End Distances in a Series of TEMPO Diradicals of up to 2.8 nm Length with a New Four-Pulse Double Electron Electron Resonance Experiment
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1998
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Microwave SpectroscopyEngineeringPhysicsElectron SpectroscopyNatural SciencesSpectroscopyRelativistic Laser-matter InteractionApplied PhysicsEnd-to-end DistancesElectron-electron DistancesDouble ResonanceInstrumentationSynchrotron RadiationTempo DiradicalsFour-pulse VersionNm Length
A four-pulse version of the pulsed double electron electron resonance (DEER) experiment has been applied to a series of TEMPO diradicals with well-defined interradical distances ranging from 1.4 to 2.8 nm (see picture). The new pulse sequence allows broad distributions of electron-electron distances to be measured without dead-time artifacts.