Photoion--photoelectron coincidence study of (CO)/sub 2/

Journal Article · Mon Mar 14 23:00:00 EST 1988 · J. Chem. Phys.; (United States)

OSTI ID:5370665

Norwood, K; Guo, J; Luo, G; Ng, C Y

The photoion--photoelectron coincidence (PIPECO) spectrum for (CO)/sup +//sub 2/ has been measured in the wavelength region of approx.600--1 000 A. The lower limits for the bond dissociation energies of CO/sup +/ (X)xCO, CO/sup +/ (A-italic-tilde)xCO, and CO/sup +/ (B-italic-tilde)xCO are determined to be 29.8, 17, and 16 kcal/mol, respectively. Evidence supporting the existence of long-lived (CO)/sup +//sub 2/ states with dissociation lifetimes >40 ..mu..s at energies above the CO/sup +/ (X,v = 0)+CO asymptote is found. The dissociative lifetimes of CO/sup +/ (A-italic-tilde)xCO and CO/sup +/(B-italic-tilde)xCO are estimated to be longer than 4 ..mu..s and 50 ns, respectively.

• Research Organization: Ames Laboratory, U.S. Department of Energy and Department of Chemistry, Iowa State University, Ames, Iowa 50011
• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 5370665
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 88:6; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400500* -- Photochemistry
ADDUCTS
AGGLOMERATION
BEAMS
BINDING ENERGY
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
COINCIDENCE METHODS
COMPLEXES
COUNTING TECHNIQUES
ELECTRON SPECTROSCOPY
ENERGY
IONIZATION
MOLECULAR BEAMS
OXIDES
OXYGEN COMPOUNDS
PHOTOELECTRON SPECTROSCOPY
PHOTOIONIZATION
SPECTROSCOPY