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J Chem Phys. 2014 Apr 28;140(16):164317. doi: 10.1063/1.4871884.

Photoelectron spectroscopy of boron aluminum hydride cluster anions.

Author information

  • 1Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, USA.
  • 2Center for Space Science and Technology, University of Maryland-Baltimore County, Baltimore, Maryland 21250, USA.
  • 3Department of Chemistry and Physics, McNeese State University, Lake Charles, Louisiana 70609, USA.
  • 4Department of Physics, West Chester University, West Chester, Pennsylvania 19383, USA.


Boron aluminum hydride clusters are studied through a synergetic combination of anion photoelectron spectroscopy and density functional theory based calculations. Boron aluminum hydride cluster anions, BxAlyHz(-), were generated in a pulsed arc cluster ionization source and identified by time-of-flight mass spectrometry. After mass selection, their photoelectron spectra were measured by a magnetic bottle-type electron energy analyzer. The resultant photoelectron spectra as well as calculations on a selected series of stoichiometries reveal significant geometrical changes upon substitution of aluminum atoms by boron atoms.

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