Electronic Resource
College Park, Md.
:
American Institute of Physics (AIP)
The Journal of Chemical Physics
117 (2002), S. 1055-1067
ISSN:
1089-7690
Source:
AIP Digital Archive
Topics:
Physics
,
Chemistry and Pharmacology
Notes:
Two-photon excitation was used to excite a number of vibronic bands within the B 1E″ state of ammonia, including a number of combination bands involving the umbrella mode, ν2, and the asymmetric bend, ν4. Photoelectron spectra following single-photon ionization of these levels by the same laser provide insight into the character of the intermediate levels, and resolve questions raised by previous photoelectron studies via the B 1E″ state. Two-color double-resonance spectra were also recorded via selected rotational levels of the B 1E″ 2341 state. These spectra show complex series of resonances that appear to converge to the X 2A2″ 2341 state of the ion. Photoelectron spectra for a large number of these resonances show that Δv2=−1 and Δv4=−1 processes dominate, but that the branching between the two processes depends strongly on the specific resonance. © 2002 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1484383
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