Accession Number:

ADA238177

Title:

Vibrationally Resolved Spectra of C2-C11 by Anion Photoelectron Spectroscopy

Descriptive Note:

Interim technical rept. 1 May-1 Jul 91,

Corporate Author:

CALIFORNIA UNIV BERKELEY DEPT OF CHEMISTRY

Report Date:

1991-07-01

Pagination or Media Count:

46.0

Abstract:

Anion photoelectron spectroscopy has been employed to obtain vibrationally resolved spectra of the carbon molecules C2 through C11. The spectra of C2- through C9- are dominated by linear anion to linear neutral photodetachment transitions. Linear to linear transitions contribute to the C11- spectrum, as well. From these spectra, vibrational frequencies and electron affinities are determined for the linear isomers of C2-C9 and C11. Term values are also obtained for the first excited electronic states of linear C4 and C6. The spectra of C10- and C11- show evidence for transitions involving cyclic anions andor neutrals. Similars types of transitions are identified in the spectra of other smaller molecules, specifically C6-, C8-, and to a lesser extent C5-.

Subject Categories:

  • Physical Chemistry
  • Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE