APPLICATIONS OF NEGATIVE ION SPECTROSCOPY TO DETERMINATIONS OF ELECTRON AFFINITIES AND BOND DISSOCIATION ENERGIES
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Publisher:Ohio State University
Negative ion spectroscopy provides a direct method for determination of electron affinities of atoms and small molecules. The photodetachment process also provides direct information on electronic excitation energies of the corresponding neutral species. We present a summary of the vinylidene acetylene isomerization as studied by this technique. Electron affinities may also be used in a thermochemical cycle involving the gas phase acidity of the corresponding acid to obtain homolytic bond dissociation energies. We will use this cycle to explore bond dissociation energies as acetylene and ethylene are completely dissected to their atomic constituents.
Author Institution: Department of Chemistry and Biochemistry, University of Colorado, and Joint Institute for Laboratory Astrophysics
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