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NEGATIVE ION PHOTOELECTRON SPECTRA OF HALOMETHYL ANIONS

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/38211

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Title: NEGATIVE ION PHOTOELECTRON SPECTRA OF HALOMETHYL ANIONS
Creators: Vogelhuber, Kristen M.; Wren, Scott W.; McCoy, Anne B.; Ervin, Kent M.; Lineberger, W. Carl
Issue Date: 2009
Abstract: Halomethyl anions undergo a significant geometry change upon electron photodetachment, resulting in multiple extended vibrational progressions in the photoelectron spectra. The normal mode analysis that successfully models photoelectron spectra when geometry changes are modest is unable to reproduce the experimental data using physically reasonable parameters. A three-dimensional anharmonic coupled-mode analysis was employed to accurately reproduce the observed vibrational structure. We present the 364 nm negative ion photoelectron spectra of the halomethyl anions CHX$_2^-$ and CDX$_2^-$ (X = Cl, Br, I) and report electron affinities, vibrational frequencies, and geometries.
URI: http://hdl.handle.net/1811/38211
Other Identifiers: 2009-TF-03
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