Vibrationally resolved spectra of C$_{2}$–C$_{11}$ by anion photoelectron spectroscopy

  • Arnold D
  • Bradforth S
  • Kitsopoulos T
 et al. 
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Abstract

Anion photoelectron spectroscopy has been employed to obtain vibrationally resolved spectra of the carbon molecules C2–C11. The spectra of C−2–C−9 are dominated by linear anion to linear neutral photodetachment transitions. Linear to linear transitions contribute to the C−11 spectrum, as well. From these spectra, vibrational frequencies and electron affinities are determined for the linear isomers of C2–C9 and C11. The term value is also obtained for the first excited electronic state of linear C4. The spectra of C−10 and C−11 show evidence for transitions involving cyclic anions and/or neutrals. Similar types of transitions are identified in the spectra of other smaller molecules, specifically C−6, C−8, and to a lesser extent C−5.

Author-supplied keywords

  • ANIONS
  • CARBON MOLECULES
  • CHAINS
  • EXCITED STATES
  • ISOMERS
  • MOLECULAR IONS
  • PHOTOELECTRON SPECTROSCOPY
  • RESOLUTION
  • VIBRATIONAL STATES

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Authors

  • D. W. Arnold

  • S. E. Bradforth

  • T. N. Kitsopoulos

  • D. M. Neumark

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