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RESEARCH PRODUCT
Determination of dissociation energies by use of energy-dependent decay pathway branching ratios
Lutz SchweikhardLutz SchweikhardAlexander HerlertKlavs HansenManuel Vogelsubject
Energy dependentChemistryBranching fractionPolyatomic ionGeneral Physics and AstronomyBranching (polymer chemistry)Bond-dissociation energyMolecular physicsDissociation (chemistry)IonFragmentation (mass spectrometry)Physics::Atomic and Molecular ClustersPhysics::Chemical PhysicsPhysical and Theoretical ChemistryAtomic physicsdescription
Abstract We present a method for the determination of dissociation energies of polyatomic systems that undergo sequential fragmentation with energy-dependent decay pathway branching. It allows to experimentally determine the dissociation energy of any polyatomic system that shows such fragmentation behaviour without the need for a specific modelling of the system or of its fragmentation process, thus eliminating several systematic errors of traditional methods. The new method has been applied to the sequential fragmentation of Au+14 and Au+16. The resulting dissociation energies are highly accurate and in good agreement with model-free values based on rates of sequential decays.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2001-09-01 | Chemical Physics Letters |