Photoelectron spectroscopy of Rydberg states of the methyl radical.

Journal Article · Fri Oct 01 04:00:00 EDT 1999 · Chem. Phys. Lett.

DOI:https://doi.org/10.1016/S0009-2614(99)00860-X· OSTI ID:942584

Bacon, J A; Pratt, S T

Photoelectron spectra following two-photon resonant, three-photon ionization of CH{sub 3} and CD{sub 3} via selected vibronic levels of the 3p{sub z} and 4p{sub z} Rydberg states are reported. Because the 3p{sub z} and 4p{sub z} Rydberg orbitals are non-bonding, the geometries of the corresponding Rydberg states of CH{sub 3} and CD{sub 3} are similar to those of the ground states of CH{sub 3}{sup +} and CD{sub 3}{sup +}, respectively. This results in nearly diagonal Franck-Condon factors, with the photoelectron spectra showing a strong propensity for the preservation of the vibrational state upon ionization. The results are compared with earlier studies of the photoelectron spectra of analogous Rydberg states of NH{sub 3}.

• Research Organization: Argonne National Laboratory (ANL)
• Sponsoring Organization: SC
• DOE Contract Number: AC02-06CH11357
• OSTI ID: 942584
• Report Number(s): ANL/CHM/JA-32767
• Journal Information: Chem. Phys. Lett., Journal Name: Chem. Phys. Lett. Journal Issue: 5 ; Oct. 1999 Vol. 311; ISSN CHPLBC; ISSN 0009-2614
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
DEUTERIUM COMPOUNDS
FRANCK-CONDON PRINCIPLE
GROUND STATES
IONIZATION
METHYL RADICALS
PHOTOELECTRON SPECTROSCOPY
RYDBERG STATES
VIBRATIONAL STATES